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Respiratory Virus Report, Week 34 - ending August 26, 2023

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Organization: Public Health Agency of Canada

Please note that the Respiratory Virus Detection Surveillance System (RVDSS) is a sentinel laboratory surveillance system that does not capture all respiratory virus testing performed in Canada; differences may exist between the data presented in this report and provincial/territorial epidemiological reports. SARS-CoV-2 laboratory data is included in this report to facilitate the comparison of positivity with other respiratory viruses. Interpretation should be made with caution as testing practices differ among viruses.

For additional SARS-CoV-2 surveillance information, please refer to the COVID-19 epidemiology update.

Overall summary

In week 34 (week ending August 26, 2023) in Canada, participating RVDSS laboratories reported 3,133 detections of SARS-CoV-2 from 23,381 tests (13.4% positive). Among non-SARS-CoV-2 respiratory viruses, where test volumes are lower (range of 4,447 to 13,226 tests), activity of enterovirus/rhinovirus is highest.

  • There has been an observed increase in national SARS-CoV-2 percent positivity over the latest seven reporting weeks.
  • While activity of enterovirus/rhinovirus is highest, it remains below expected levels typical of this time of year (570 detections; 12.5% positive).
  • Activity of all other non-SARS-CoV-2 respiratory viruses is low and near expected levels typical of this time of year.
  • 33/35 sentinel laboratories reported surveillance data

On this page

Abbreviations:
ADV
Adenovirus
Atl
Atlantic Canada
BC
British Columbia
Can
Canada
EORLA
Eastern Ontario Regional Laboratory Association
EV/RV
Enterovirus/Rhinovirus
Flu
Influenza
Flu A(H1)pdm09
Influenza A(H1N1)pdm09
Flu A(H3)
Influenza A(H3N2)
Flu A(UnS)
Influenza A(Unsubtyped)
HCoV
Human coronavirus 229E/OC43/NL63/HKU1
HMPV
Human metapneumovirus
HPIV
Human parainfluenza virus
HSC
Health Sciences Centre
N.C.
Data not collected
N.R.
Data not reported for current week
ON
Ontario
PR
Prairies
P.H.O.L.
Public Health Ontario Laboratory
QC
Quebec
RSV
Respiratory syncytial virus
RVDSS
Respiratory Virus Detection Surveillance System
SARS-CoV-2
Severe acute respiratory syndrome coronavirus 2
Terr
Territories of Canada
UHN
University Health Network

Respiratory virus detections

Table 1: Respiratory virus detections for the week ending August 26, 2023 (surveillance week 2023-34)
Reporting Laboratory SARS-CoV-2 Tested SARS-CoV-2 Positive Flu Tested A(H1)pdm09 Positive A(H3) Positive A(UnS) Positive Total Flu A Positive Total Flu B Positive RSV Tested RSV Positive HPIV Tested HPIV 1 Positive HPIV 2 Positive HPIV 3 Positive HPIV 4 Positive Other HPIV Positive ADV Tested ADV Positive HMPV Tested HMPV Positive EV/RV Tested EV/RV Positive HCoV Tested HCoV Positive
Newfoundland 377 47 217 0 0 0 0 0 217 1 217 0 0 0 3 0 217 5 217 0 217 39 217 2
Prince Edward Island 116 13 11 0 0 0 0 0 11 0 5 0 0 0 0 0 5 0 5 0 5 1 5 0
Nova Scotia 816 141 353 0 0 0 0 0 353 2 32 1 0 0 3 0 32 0 32 0 32 6 32 1
New Brunswick 516 53 324 0 0 0 0 0 312 0 42 0 0 1 0 0 42 2 42 0 42 6 42 1
Atlantic 1825 254 905 0 0 0 0 0 893 3 296 1 0 1 6 0 296 7 296 0 296 52 296 4
Région Nord-Est 1158 178 917 0 0 1 1 0 184 1 67 2 1 1 3 0 67 5 66 1 N.C. N.C. 67 0
Québec-Chaudière-Appalaches 1621 252 424 0 0 1 1 0 424 5 186 1 0 0 0 0 204 7 186 1 N.C. N.C. 186 1
Centre-du-Québec 1250 206 200 0 0 0 0 0 200 6 36 1 0 0 1 0 36 2 36 0 N.C. N.C. 36 0
Montréal-Laval 2491 337 1046 0 0 5 5 2 988 12 581 0 2 3 6 0 581 8 581 8 N.C. N.C. 581 0
Ouest du Québec 1050 170 254 0 0 4 4 1 254 1 20 1 1 1 2 0 20 1 20 1 N.C. N.C. 20 1
Montérégie 1010 140 536 0 0 1 1 0 535 5 8 0 0 0 0 0 8 0 8 0 N.C. N.C. 8 0
Province of Québec 8580 1283 3377 0 0 12 12 3 2585 30 898 5 4 5 12 0 916 23 897 11 N.C. N.C. 898 2
P.H.O.L. - Ottawa 337 125 194 0 0 0 0 0 194 0 89 0 0 0 0 2 89 0 89 1 89 9 89 1
EORLA 1263 104 271 0 0 2 2 0 271 8 25 0 0 0 0 0 25 0 25 0 25 7 25 0
P.H.O.L. - Kingston 307 96 81 0 0 0 0 0 81 0 53 0 0 0 0 2 53 0 53 0 53 12 53 0
UHN / Mount Sinai Hospital 527 32 495 0 1 2 3 0 495 0 19 0 0 0 0 0 19 0 19 0 19 0 19 1
P.H.O.L. - Toronto 367 78 744 11 3 0 13 0 744 3 689 0 0 0 0 40 690 9 689 1 689 140 689 1
Sick Kids Hospital - Toronto N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R.
Shared Hospital Laboratory 691 42 691 2 0 1 3 0 691 5 694 0 0 0 0 7 694 5 698 1 697 51 698 0
P.H.O.L. - Sault Ste. Marie 2 1 4 0 0 0 0 0 4 0 4 0 0 0 0 0 4 0 4 0 4 0 4 0
P.H.O.L. - Timmins 21 1 7 0 0 0 0 0 7 0 7 0 0 0 0 0 7 1 7 0 7 0 7 0
St. Joseph's - London 517 44 24 0 0 0 0 0 24 0 24 0 0 0 0 0 24 0 24 0 24 0 24 0
P.H.O.L. - London 223 32 153 1 0 0 1 0 153 0 136 0 0 0 0 10 136 0 136 0 136 32 136 0
P.H.O.L. - Orillia 41 14 26 0 0 0 0 0 26 0 17 0 0 0 0 0 17 2 17 0 17 4 17 0
P.H.O.L. - Thunder Bay 30 4 18 0 0 0 0 0 18 0 9 0 0 0 0 0 9 0 9 0 9 1 9 0
P.H.O.L. - Sudbury 17 5 18 0 0 0 0 0 18 0 18 0 0 0 0 0 18 0 18 0 18 4 18 0
P.H.O.L. - Hamilton 204 55 117 0 0 0 0 0 117 0 98 0 0 0 0 1 98 1 98 0 98 9 98 0
P.H.O.L. - Peterborough 24 4 23 1 0 0 1 0 23 0 16 0 0 0 0 0 16 4 16 0 16 2 16 0
St. Joseph's - Hamilton 1273 94 1041 0 0 3 3 1 1041 3 1041 0 0 1 0 0 1041 8 1041 1 1041 53 0 0
Sault Area Hospital 52 7 42 0 0 0 0 0 42 0 42 0 0 0 0 0 42 0 42 0 42 8 52 0
Province of Ontario 5896 738 3949 15 4 8 26 1 3949 19 2981 0 0 1 0 62 2982 30 2985 4 2984 332 1954 3
Manitoba 987 138 858 0 0 1 1 0 858 3 66 1 2 0 0 0 66 4 92 0 66 22 92 0
Saskatchewan 1024 76 474 0 0 0 0 1 462 1 218 0 2 0 0 0 218 5 218 0 218 28 218 5
Alberta 2805 256 1897 4 0 0 4 1 1797 5 552 1 2 1 0 0 552 9 49 0 546 67 552 7
Prairies 4816 470 3229 4 0 1 5 2 3117 9 836 2 6 1 0 0 836 18 359 0 830 117 862 12
British Columbia 2163 378 1706 1 0 0 23 0 1706 1 469 6 2 0 4 0 469 13 469 0 437 69 437 5
Yukon 39 7 17 0 0 0 0 0 17 0 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C.
Northwest Territories N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 0 0 N.C. N.C.
Nunavut 62 3 43 0 0 0 0 0 43 1 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C.
Territories 101 10 60 0 0 0 0 0 60 1 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 0 0 N.C. N.C.
CANADA 23381 3133 13226 20 4 21 66 6 12310 63 5480 14 12 8 22 62 5499 91 5006 15 4547 570 4447 26

The data in the RVDSS report represent surveillance data available at the time of writing. Data missing from the current week are denoted by N.R. Data not collected by reporting lab denoted by N.C.

Some specimens from Yukon (YT) are sent to reference laboratories in British Columbia and reported results reflect specimens identified as originating from YT.

Results from British Columbia comprise of specimens from the following sites: Children's and Women's Hospital Laboratory, Fraser Health Medical Microbiology Laboratory, Island Health, Providence Health Care, Vancouver Coastal Health sites, Victoria General Hospital, BCCDC Public Health Laboratory, Interior Health Authority sites and Northern Health Authority sites.

Due to different testing protocols of laboratories across Canada, influenza A subtype detection counts may not be included in total influenza A detection counts. Total influenza A and B positive counts are used to calculate percentage of tests positive.

Delays in the reporting of data may cause data to change retrospectively.

Table 2: Cumulative respiratory virus detections from August 28, 2022 to August 26, 2023 (surveillance weeks 2022-35 to 2023-34)
Reporting Laboratory SARS-CoV-2 Tested SARS-CoV-2 Positive Flu Tested A(H1)pdm09 Positive A(H3) Positive A(UnS) Positive Total Flu A Positive Total Flu B Positive RSV Tested RSV Positive HPIV Tested HPIV 1 Positive HPIV 2 Positive HPIV 3 Positive HPIV 4 Positive Other HPIV Positive ADV Tested ADV Positive HMPV Tested HMPV Positive EV/RV Tested EV/RV Positive HCoV Tested HCoV Positive
Newfoundland 25987 4363 15322 8 246 680 934 11 15322 649 15322 75 33 388 173 0 15322 328 15322 386 15322 1442 15322 575
Prince Edward Island 34030 7371 4138 1 119 248 368 4 4138 384 1208 21 27 81 8 0 1208 82 1208 39 1208 351 1208 35
Nova Scotia 142197 27023 49046 0 4 3661 3665 15 49037 2436 1686 16 17 36 11 0 1693 69 1683 45 1693 333 1693 66
New Brunswick 114035 16307 54271 25 133 4439 4597 31 46170 2066 4408 41 35 167 8 0 4408 302 4408 188 4408 814 4353 237
Atlantic 316249 55064 122777 34 502 9028 9564 61 114667 5535 22624 153 112 672 200 0 22631 781 22621 658 22631 2940 22576 913
Région Nord-Est 107483 12445 66489 2 4 3897 3903 112 18833 1411 2285 35 14 97 20 0 2286 189 2262 101 N.C. N.C. 2286 113
Québec-Chaudière-Appalaches 210932 19834 30861 0 0 2911 2911 185 30179 1984 9525 27 7 98 28 0 10406 817 9525 372 N.C. N.C. 9525 346
Centre-du-Québec 172407 22627 18061 0 0 1788 1788 124 16291 1014 1441 18 3 57 23 0 1441 146 1441 78 N.C. N.C. 1441 72
Montréal-Laval 243080 28663 118709 2 9 6414 6425 1595 69122 2877 29448 159 45 638 140 0 29459 1173 29612 873 N.C. N.C. 29141 824
Ouest du Québec 128960 16067 27412 0 7 2211 2218 194 26495 1495 1291 23 2 71 17 0 1290 212 1291 66 N.C. N.C. 1292 64
Montérégie 160719 17867 55068 0 0 3121 3121 286 48660 1914 220 0 0 2 0 0 220 5 220 6 N.C. N.C. 220 6
Province of Québec 1023581 117503 316600 4 20 20342 20366 2496 209580 10695 44210 262 71 963 228 0 45102 2542 44351 1496 N.C. N.C. 43905 1425
P.H.O.L. - Ottawa 30948 7863 6722 28 136 66 224 3 6722 355 4710 0 0 0 0 145 4710 21 4710 116 4710 491 4710 213
EORLA 100180 9324 19886 0 0 1428 1428 61 19886 1340 1665 13 14 61 20 0 1665 58 1665 64 1665 361 1665 102
P.H.O.L. - Kingston 32827 5193 3781 9 92 38 138 3 3778 180 3003 0 0 0 0 159 3004 32 3003 81 3003 394 3003 106
UHN / Mount Sinai Hospital 108748 7896 30428 7 45 366 418 62 30428 326 2522 2 2 65 4 0 2489 9 2522 16 2522 104 2522 99
P.H.O.L. - Toronto 56190 11862 36828 204 2423 157 1200 77 36791 1367 32896 0 0 0 0 1596 32901 720 32893 1110 32896 3712 32893 1399
Sick Kids Hospital - Toronto 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Shared Hospital Laboratory 97192 6552 97191 152 1479 732 2363 393 97192 2249 74498 4 0 16 0 986 74511 830 74817 970 74764 2809 74657 1076
P.H.O.L. - Sault Ste. Marie 1910 347 781 1 52 15 58 0 781 25 688 0 0 0 0 54 688 5 688 31 688 58 688 44
P.H.O.L. - Timmins 9650 925 1227 0 161 6 156 0 1225 98 1120 0 0 0 0 56 1120 15 1120 29 1120 103 1120 49
St. Joseph's - London 132325 15715 21614 0 0 886 886 76 21614 1016 2775 0 0 0 0 96 2809 93 2809 74 2809 381 2398 108
P.H.O.L. - London 40513 8341 13303 19 587 63 651 28 13302 891 10885 0 0 0 0 576 10886 153 10886 267 10885 1194 10886 330
P.H.O.L. - Orillia 764 302 2720 6 261 23 290 16 2720 238 2631 0 0 0 0 157 2632 90 2631 83 2631 404 2631 108
P.H.O.L. - Thunder Bay 9034 1809 1285 0 107 3 110 0 1284 96 1125 0 0 0 0 38 1125 21 1125 29 1125 153 1126 40
P.H.O.L. - Sudbury 2239 332 921 1 65 14 67 0 921 79 800 0 0 0 0 30 800 9 800 51 800 67 800 25
P.H.O.L. - Hamilton 28203 7335 11019 38 305 92 418 41 11016 560 8418 0 0 0 0 377 8420 230 8418 268 8418 891 8418 302
P.H.O.L. - Peterborough 5780 1062 2225 5 69 11 85 19 2223 118 1857 0 0 0 0 80 1857 60 1857 50 1857 368 1857 50
St. Joseph's - Hamilton 115001 14464 62728 0 0 2786 2786 532 62728 2312 62728 0 0 1191 0 0 62728 1060 62728 976 62728 4019 0 0
Sault Area Hospital 13299 2184 9200 1 262 258 521 8 9200 173 3359 38 9 74 4 0 3359 62 3359 101 3359 378 3376 88
Province of Ontario 784803 101506 321859 471 6044 6944 11799 1319 321811 11423 215680 57 25 1407 28 4350 215704 3468 216031 4316 215980 15887 152750 4139
Manitoba 84112 12683 53509 18 205 1820 2043 87 53509 1814 6310 49 58 179 16 0 6300 194 6930 229 6310 1160 6930 225
Saskatchewan 182305 14257 49015 7 41 3997 4045 83 40707 2219 16904 169 137 534 116 0 16906 507 16906 688 16907 2090 16902 549
Alberta 271820 36063 160049 1124 7312 2855 11291 796 143803 7697 55243 405 202 991 155 0 55223 866 53917 1268 54331 5635 55242 1366
Prairies 538237 63003 262573 1149 7558 8672 17379 966 238019 11730 78457 623 397 1704 287 0 78429 1567 77753 2185 77548 8885 79074 2140
British Columbia 263844 28259 158560 616 4366 314 9245 331 150473 8280 36423 452 250 1196 356 6 36391 1320 36391 1222 35199 5532 35219 1213
Yukon 5672 431 1119 3 136 0 142 9 1117 61 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C.
Northwest Territories 1824 195 1658 10 147 1 158 5 1658 115 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 1658 351 N.C. N.C.
Nunavut 5812 402 3538 8 230 3 241 234 3538 167 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C.
Territories 13308 1028 6315 21 513 4 541 248 6313 343 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 1658 351 N.C. N.C.
CANADA 2940022 366363 1188684 2295 19003 45304 68894 5421 1040863 48006 397394 1547 855 5942 1099 4356 398257 9678 397147 9877 353016 33595 333524 9830

The data in the RVDSS report represent surveillance data available at the time of writing. Data not collected by reporting lab denoted by N.C.

Some specimens from Yukon (YT) are sent to reference laboratories in British Columbia and reported results reflect specimens identified as originating from YT.

Results from British Columbia comprise of specimens from the following sites: Children's and Women's Hospital Laboratory, Fraser Health Medical Microbiology Laboratory, Island Health, Providence Health Care, Vancouver Coastal Health sites, Victoria General Hospital, BCCDC Public Health Laboratory, Interior Health Authority sites and Northern Health Authority sites.

Due to different testing protocols of laboratories across Canada, influenza A subtype detection counts may not be included in total influenza A detection counts. Total influenza A and B positive counts are used to calculate percentage of tests positive.

Delays in the reporting of data may cause data to change retrospectively. Due to these delays, the sum of weekly report totals do not add up to cumulative totals.

Positive respiratory virus tests historical comparison

Figure 1: Positive severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), influenza, and respiratory syncytial virus tests (%) reported by participating laboratories in Canada by surveillance week compared to average and range from 2014-2015 to 2019-2020 season
Figure 1

Shaded area represents the maximum and minimum % of respiratory virus tests positive reported by week from seasons 2014-2015 to 2019-2020

Note: Changes to testing practices during the COVID-19 pandemic may cause substantial changes to indicator estimates from previous years. Collection of laboratory testing practice meta-data to understand these changes is ongoing. Interpret trends with caution.

Note: SARS-CoV-2 surveillance was integrated into RVDSS at the beginning of the 2022-2023 season; no appropriate data is available for historical comparison.

Note: Data from week 11 of the 2019-2020 season onwards are excluded from the historical comparison due to the COVID-19 pandemic.

Figure 1: Positive severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), influenza, and respiratory syncytial virus tests (%) reported by participating laboratories in Canada by surveillance week compared to average and range from 2014-2015 to 2019-2020 season
Week Week end 2022-2023 SARS-CoV-2% 2022-2023 A% 2021-2022 A% 2020-2021 A% Max A% Base Min A% Base Av A% Base 2022-2023 B% 2021-2022 B% 2020-2021 B% Max B% Base Min B% Base Av B% Base 2022-2023 RSV% 2021-2022 RSV% 2020-2021 RSV% Max RSV% Base Min RSV% Base Av RSV% Base
35 2022-09-03 13.40 0.18 0.04 0.00 1.60 0.11 0.68 0.02 0.00 0.02 0.28 0.00 0.13 1.14 4.43 0.02 1.34 0.38 0.60
36 2022-09-10 13.07 0.14 0.01 0.00 2.11 0.23 0.98 0.04 0.00 0.00 0.55 0.00 0.15 1.12 6.61 0.04 1.09 0.22 0.57
37 2022-09-17 12.73 0.24 0.03 0.00 1.59 0.36 0.87 0.01 0.00 0.00 0.19 0.04 0.12 1.05 7.59 0.02 1.37 0.31 0.64
38 2022-09-24 13.61 0.48 0.00 0.02 2.15 0.43 1.16 0.02 0.00 0.00 0.21 0.00 0.14 1.40 7.16 0.10 1.24 0.37 0.64
39 2022-10-01 14.45 0.68 0.01 0.00 2.65 0.57 1.53 0.03 0.00 0.00 0.29 0.09 0.18 2.11 8.48 0.05 1.29 0.41 0.68
40 2022-10-08 15.06 0.99 0.00 0.00 2.17 1.01 1.58 0.03 0.02 0.00 0.20 0.05 0.11 2.44 8.53 0.07 1.39 0.34 0.67
41 2022-10-15 16.58 1.44 0.03 0.01 2.66 1.05 1.57 0.01 0.03 0.00 0.36 0.03 0.16 3.52 9.54 0.10 1.74 0.58 0.98
42 2022-10-22 15.39 2.39 0.03 0.00 2.96 0.77 1.92 0.05 0.02 0.00 0.45 0.05 0.25 4.56 8.18 0.07 2.11 0.63 1.14
43 2022-10-29 15.78 5.54 0.03 0.01 5.23 0.68 2.60 0.03 0.02 0.00 0.55 0.06 0.23 6.59 8.11 0.07 2.16 0.55 1.32
44 2022-11-05 13.91 10.91 0.10 0.04 8.42 1.08 3.39 0.03 0.10 0.03 0.71 0.12 0.31 7.63 7.82 0.05 3.35 0.83 1.92
45 2022-11-12 12.43 16.20 0.07 0.02 9.83 1.18 4.19 0.04 0.06 0.02 0.97 0.22 0.44 7.54 7.03 0.04 4.43 1.29 2.59
46 2022-11-19 11.97 20.15 0.10 0.03 13.95 1.42 5.47 0.05 0.06 0.01 1.49 0.09 0.58 7.51 7.18 0.06 6.33 1.38 3.29
47 2022-11-26 11.76 24.06 0.13 0.03 15.24 1.25 6.91 0.04 0.07 0.04 2.13 0.13 0.80 6.65 8.10 0.03 8.69 1.79 4.46
48 2022-12-03 12.12 23.83 0.19 0.04 18.07 0.76 9.40 0.03 0.15 0.01 3.18 0.08 1.20 6.93 8.92 0.02 9.47 3.11 5.72
49 2022-12-10 12.63 20.95 0.23 0.03 19.52 1.43 11.41 0.06 0.05 0.01 4.21 0.19 1.60 7.36 10.09 0.06 12.26 4.87 7.12
50 2022-12-17 13.10 17.20 0.23 0.01 26.42 1.97 14.27 0.07 0.02 0.01 7.95 0.15 2.55 8.71 10.78 0.07 13.19 5.39 7.93
51 2022-12-24 14.15 12.50 0.18 0.00 28.53 2.27 16.81 0.05 0.02 0.01 10.44 0.19 3.30 9.26 8.97 0.07 15.23 6.52 9.27
52 2022-12-31 15.61 7.97 0.09 0.00 33.97 3.30 20.41 0.07 0.01 0.00 12.73 0.23 4.07 10.69 6.72 0.01 17.80 6.83 10.39
1 2023-01-07 15.09 4.59 0.08 0.00 30.93 4.58 19.55 0.07 0.00 0.00 10.34 0.22 3.86 10.40 5.26 0.04 15.62 7.12 10.17
2 2023-01-14 13.41 2.24 0.11 0.00 26.80 5.46 19.10 0.05 0.01 0.00 11.01 0.29 3.91 9.12 4.32 0.07 14.05 6.60 9.63
3 2023-01-21 12.26 1.39 0.04 0.01 28.20 9.13 18.94 0.14 0.01 0.01 12.75 0.35 4.69 8.47 3.42 0.03 15.56 6.72 10.32
4 2023-01-28 11.35 0.91 0.05 0.00 27.01 12.34 18.81 0.15 0.00 0.00 12.74 0.41 5.15 7.97 2.33 0.05 15.88 7.02 11.23
5 2023-02-04 11.56 0.75 0.03 0.00 23.66 15.78 19.14 0.28 0.01 0.00 14.84 0.41 5.76 7.18 2.19 0.04 16.33 7.17 11.49
6 2023-02-11 11.89 0.68 0.04 0.02 23.36 15.63 18.79 0.34 0.01 0.00 16.23 0.44 6.21 5.79 2.10 0.08 15.79 6.52 11.70
7 2023-02-18 11.79 0.55 0.02 0.00 24.22 15.48 18.52 0.29 0.00 0.00 17.02 0.35 6.54 5.13 2.16 0.02 15.53 6.95 11.26
8 2023-02-25 11.74 0.57 0.06 0.00 28.62 12.42 18.53 0.50 0.02 0.00 16.79 0.45 6.60 4.54 2.12 0.05 15.47 6.64 10.63
9 2023-03-04 11.19 0.63 0.12 0.00 29.30 11.04 18.35 0.70 0.00 0.00 15.45 0.74 6.24 3.73 2.50 0.01 15.62 6.54 10.04
10 2023-03-11 11.43 0.62 0.16 0.00 29.65 8.51 16.81 0.78 0.00 0.00 14.86 0.81 6.41 2.82 3.10 0.00 14.97 6.35 9.37
11 2023-03-18 11.59 0.52 0.26 0.01 24.27 6.74 14.55 1.16 0.01 0.00 13.11 1.05 6.86 2.20 3.71 0.03 12.11 6.29 8.83
12 2023-03-25 11.29 0.60 0.86 0.00 20.91 5.51 12.67 1.29 0.00 0.00 11.53 1.51 7.43 1.97 3.79 0.07 10.70 6.46 8.12
13 2023-04-01 10.85 0.64 1.52 0.00 18.09 4.67 11.66 1.74 0.00 0.00 12.55 1.98 7.90 1.64 4.00 0.04 9.32 6.45 7.64
14 2023-04-08 10.92 0.38 2.48 0.00 17.83 3.21 9.98 1.85 0.01 0.00 13.12 2.12 7.88 1.34 4.05 0.08 8.09 5.32 6.44
15 2023-04-15 11.37 0.60 3.84 0.01 17.75 2.18 8.72 1.93 0.02 0.00 12.22 2.00 7.55 1.41 3.46 0.11 7.73 4.64 5.97
16 2023-04-22 10.94 0.51 6.98 0.00 13.67 2.13 6.80 1.85 0.01 0.00 11.94 2.56 7.68 1.31 2.97 0.23 6.64 4.40 5.40
17 2023-04-29 10.08 0.48 9.67 0.00 11.31 1.28 5.34 1.83 0.01 0.00 12.18 2.94 7.49 1.14 2.84 0.21 5.79 3.52 4.58
18 2023-05-06 9.85 0.50 11.28 0.00 8.05 0.89 3.95 1.81 0.01 0.00 10.20 2.62 6.31 0.86 2.34 0.27 4.86 2.78 3.62
19 2023-05-13 9.60 0.66 12.58 0.00 8.27 0.90 3.26 1.46 0.05 0.00 9.33 2.12 5.72 0.72 2.40 0.24 4.61 2.30 3.16
20 2023-05-20 9.33 0.77 10.28 0.00 6.42 0.56 2.33 1.29 0.07 0.01 7.59 1.12 4.89 0.61 2.52 0.18 4.46 1.59 2.66
21 2023-05-27 9.23 0.51 9.73 0.01 4.40 0.12 1.67 1.13 0.04 0.00 5.43 0.91 3.93 0.40 2.25 0.25 4.10 1.23 2.13
22 2023-06-03 8.45 0.53 8.38 0.00 2.98 0.29 1.35 1.02 0.06 0.00 3.51 0.53 2.51 0.55 2.40 0.26 3.72 0.86 1.71
23 2023-06-10 7.44 0.62 6.88 0.00 2.55 0.56 1.07 0.69 0.13 0.00 2.78 0.32 1.79 0.41 2.10 0.18 3.38 0.77 1.56
24 2023-06-17 6.69 0.57 4.95 0.02 2.82 0.30 0.93 0.47 0.06 0.00 2.11 0.27 1.32 0.32 1.95 0.32 3.22 0.50 1.37
25 2023-06-24 6.18 0.60 2.95 0.00 2.78 0.32 0.97 0.35 0.08 0.00 1.35 0.32 0.91 0.34 1.82 0.31 2.91 0.42 1.05
26 2023-07-01 5.79 0.52 2.19 0.00 2.04 0.48 1.08 0.19 0.06 0.00 1.08 0.21 0.73 0.37 1.45 0.27 2.06 0.26 0.79
27 2023-07-08 5.75 0.40 1.19 0.00 1.90 0.30 1.06 0.19 0.04 0.00 1.04 0.06 0.42 0.33 1.47 0.43 1.85 0.30 0.81
28 2023-07-15 6.14 0.58 0.74 0.00 1.35 0.34 0.65 0.22 0.05 0.00 0.59 0.00 0.26 0.38 1.40 0.11 1.48 0.35 0.67
29 2023-07-22 6.94 0.45 0.63 0.00 1.38 0.47 0.93 0.09 0.05 0.00 0.40 0.00 0.15 0.48 1.48 0.82 1.28 0.11 0.48
30 2023-07-29 7.70 0.45 0.36 0.04 1.29 0.40 0.75 0.04 0.02 0.00 0.31 0.06 0.15 0.48 1.08 0.93 1.96 0.14 0.64
31 2023-08-05 8.41 0.38 0.26 0.00 1.57 0.40 0.92 0.08 0.04 0.00 0.36 0.00 0.19 0.48 1.18 1.36 1.42 0.31 0.68
32 2023-08-12 9.39 0.64 0.16 0.00 1.19 0.45 0.77 0.06 0.02 0.00 0.32 0.00 0.15 0.55 1.14 1.52 1.84 0.16 0.64
33 2023-08-19 11.58 0.56 0.16 0.00 1.51 0.32 0.69 0.08 0.02 0.00 0.25 0.06 0.16 0.43 1.37 1.98 1.96 0.25 0.76
34 2023-08-26 13.40 0.50 0.23 0.02 1.29 0.42 0.82 0.05 0.00 0.01 0.29 0.00 0.10 0.51 1.17 3.59 1.76 0.26 0.88
Figure 2: Positive tests (%) of other respiratory viruses reported by participating laboratories in Canada by surveillance week compared to average and range from 2014-2015 to 2019-2020 season
Figure 2

Shaded area represents the maximum and minimum % of respiratory virus tests positive reported by week from seasons 2014-2015 to 2019-2020

Note: Changes to testing practices during the COVID-19 pandemic may cause substantial changes to indicator estimates from previous years. Collection of laboratory testing practice meta-data to understand these changes is ongoing. Interpret trends with caution.

Note: Data from week 11 of the 2019-2020 season onwards are excluded from the historical comparison due to the COVID-19 pandemic.

Note: % Tests Positive scale changes across the dashed line

Figure 2: Positive tests (%) of other respiratory viruses reported by participating laboratories in Canada by surveillance week compared to average and range from 2014-2015 to 2019-2020 season
Week Week end 2022-2023 EV/RV% 2021-2022 EV/RV% 2020-2021 EV/RV% Max EV/RV% Base Min EV/RV% Base Av EV/RV% Base 2022-2023 HPIV% 2021-2022 HPIV% 2020-2021 HPIV% Max HPIV% Base Min HPIV% Base Av HPIV% Base 2022-2023 ADV% 2021-2022 ADV% 2020-2021 ADV% Max ADV% Base Min ADV% Base Av ADV% Base 2022-2023 HMPV% 2021-2022 HMPV% 2020-2021 HMPV% Max HMPV% Base Min HMPV% Base Av HMPV% Base 2022-2023 HCoV% 2021-2022 HCoV% 2020-2021 HCoV% Max HCoV% Base Min HCoV% Base Av HCoV% Base
35 2022-09-03 15.47 21.96 9.07 27.19 22.44 24.78 2.80 5.99 0.08 3.16 1.15 2.42 2.28 1.18 0.27 1.74 0.99 1.43 1.80 0.23 0.17 2.04 0.10 0.77 0.53 1.05 0.06 0.76 0.18 0.45
36 2022-09-10 16.22 18.59 8.13 30.69 23.30 26.31 3.21 4.93 0.20 3.31 1.35 2.32 2.19 1.15 0.40 2.85 1.42 1.87 1.81 0.24 0.06 0.84 0.10 0.48 0.38 0.62 0.00 0.38 0.12 0.22
37 2022-09-17 21.73 27.46 8.07 33.58 27.74 31.68 3.02 5.97 0.13 3.26 1.65 2.40 2.10 0.81 0.35 2.44 1.38 1.86 1.38 0.17 0.05 1.61 0.00 0.51 0.28 0.44 0.05 0.56 0.00 0.26
38 2022-09-24 23.50 33.19 15.67 39.57 32.80 35.33 2.40 4.73 0.07 2.87 1.92 2.33 1.59 0.82 0.58 2.04 1.11 1.63 1.61 0.37 0.02 1.43 0.06 0.47 0.32 0.67 0.00 1.36 0.06 0.43
39 2022-10-01 22.89 30.01 24.12 40.59 34.87 37.68 3.10 8.12 0.02 3.01 1.70 2.24 2.21 1.14 0.19 2.27 1.04 1.66 1.43 0.17 0.04 0.72 0.05 0.28 0.59 0.62 0.05 0.66 0.07 0.45
40 2022-10-08 19.32 26.26 16.62 41.29 33.00 35.43 3.70 8.19 0.02 3.28 1.90 2.43 1.80 1.31 0.44 2.25 1.39 1.82 1.43 0.16 0.00 0.92 0.05 0.34 0.93 0.57 0.09 1.08 0.22 0.58
41 2022-10-15 16.70 22.91 15.48 33.62 26.94 29.81 3.52 10.46 0.06 3.70 1.94 2.74 2.03 1.37 0.37 1.91 1.28 1.70 1.66 0.20 0.19 0.95 0.04 0.46 1.00 1.69 0.02 0.70 0.00 0.33
42 2022-10-22 12.95 22.16 13.60 32.62 24.54 27.82 4.21 10.01 0.06 3.89 2.64 3.20 1.67 2.54 0.47 2.38 1.47 1.86 1.59 0.15 0.06 0.89 0.15 0.38 1.16 1.07 0.00 1.18 0.20 0.49
43 2022-10-29 11.05 19.64 13.14 28.73 21.67 24.95 4.41 9.38 0.07 3.98 3.18 3.56 1.79 1.15 0.37 2.42 1.63 1.96 1.78 0.36 0.02 1.64 0.12 0.57 1.86 1.05 0.00 2.35 0.27 0.75
44 2022-11-05 10.23 21.45 9.23 23.82 16.75 21.34 4.14 10.28 0.03 4.81 2.94 3.70 2.02 1.42 0.22 2.88 1.18 2.20 1.79 0.77 0.13 1.08 0.23 0.47 2.54 2.21 0.00 2.59 0.21 0.88
45 2022-11-12 7.77 22.39 9.70 23.08 15.17 20.56 3.90 9.97 0.01 5.42 2.53 4.01 1.99 1.63 0.33 2.68 2.02 2.42 2.06 0.64 0.01 1.30 0.04 0.77 3.00 2.57 0.03 2.74 0.52 0.96
46 2022-11-19 6.93 21.37 9.02 22.77 15.28 19.27 3.97 8.29 0.04 5.72 1.62 4.19 1.87 2.51 0.30 2.90 1.99 2.53 1.89 0.99 0.04 1.43 0.18 0.79 3.54 2.99 0.03 3.32 0.46 1.25
47 2022-11-26 4.88 18.54 8.44 20.84 12.15 16.09 3.63 7.04 0.06 7.00 2.36 4.72 1.89 1.94 0.32 2.95 1.83 2.35 1.78 1.01 0.02 2.02 0.09 0.89 3.24 3.90 0.04 3.26 0.37 1.25
48 2022-12-03 4.74 16.64 7.94 16.72 12.69 13.83 3.04 5.78 0.02 6.14 3.03 4.18 1.87 1.89 0.35 3.34 1.66 2.48 1.86 1.48 0.02 1.94 0.31 1.08 3.94 4.94 0.02 4.30 1.00 2.04
49 2022-12-10 4.09 14.57 6.21 16.32 10.72 13.07 3.03 3.97 0.00 5.65 2.94 4.19 1.68 2.48 0.54 3.03 1.84 2.49 1.93 1.22 0.05 2.80 0.49 1.46 4.48 6.58 0.05 5.19 0.84 2.52
50 2022-12-17 4.58 12.40 6.62 13.85 8.43 10.90 2.98 3.23 0.06 5.95 2.54 4.27 2.29 2.72 0.51 3.27 1.49 2.45 1.92 1.08 0.02 3.32 0.46 1.70 5.13 7.26 0.11 6.04 1.54 3.16
51 2022-12-24 4.49 9.95 5.65 14.18 8.81 10.48 3.09 3.01 0.04 6.71 2.94 3.95 1.76 2.54 0.58 3.20 1.36 2.04 2.23 1.20 0.04 4.39 0.37 2.44 5.28 8.11 0.05 6.68 1.87 3.72
52 2022-12-31 4.50 7.71 6.53 14.41 6.24 9.23 3.32 2.13 0.03 5.08 2.87 3.75 1.80 1.92 0.48 2.59 1.20 1.76 2.75 1.00 0.11 3.81 0.41 2.44 4.73 10.33 0.07 6.73 2.78 4.75
1 2023-01-07 4.19 5.71 5.43 11.09 4.36 7.42 3.63 1.84 0.12 5.08 2.68 3.34 1.88 1.84 0.81 2.67 0.85 1.54 2.94 0.72 0.06 4.45 0.28 2.70 4.40 9.27 0.12 7.77 3.07 5.16
2 2023-01-14 4.71 3.98 5.18 9.55 4.31 6.79 3.24 1.19 0.08 4.12 2.46 3.05 1.87 1.13 0.82 2.15 0.87 1.37 2.61 0.38 0.03 4.76 0.42 2.66 4.01 7.46 0.16 7.89 2.84 5.44
3 2023-01-21 6.68 3.12 3.56 8.42 4.44 6.01 2.92 0.76 0.05 3.25 2.59 2.82 1.97 1.34 0.40 2.10 1.15 1.45 2.56 0.24 0.11 5.56 0.47 3.13 3.46 4.97 0.26 7.90 4.17 6.11
4 2023-01-28 8.22 2.60 3.87 9.04 4.89 6.41 2.78 0.64 0.06 3.12 1.77 2.55 2.35 1.18 0.46 1.83 1.11 1.49 2.71 0.23 0.12 5.19 0.55 3.01 2.63 3.92 0.16 7.86 3.79 6.08
5 2023-02-04 8.94 3.02 4.76 9.79 6.06 6.94 2.70 0.48 0.06 3.48 1.70 2.39 2.44 1.57 0.29 1.93 1.36 1.62 2.96 0.25 0.16 5.70 0.58 3.29 3.20 2.83 0.13 8.49 4.55 6.84
6 2023-02-11 9.97 3.86 5.08 9.89 6.16 6.98 2.67 0.51 0.10 2.89 1.57 2.19 2.14 1.44 0.54 1.74 1.25 1.51 3.73 0.42 0.19 5.57 0.65 3.39 2.64 3.01 0.20 8.57 3.48 6.75
7 2023-02-18 9.87 4.46 5.56 8.95 6.00 7.02 2.63 0.44 0.00 3.20 1.42 2.12 2.31 1.52 0.49 1.61 1.30 1.51 4.41 0.44 0.14 6.05 1.45 3.94 3.14 3.24 0.13 8.02 4.35 6.54
8 2023-02-25 9.55 6.31 4.77 8.35 5.20 6.94 2.55 0.73 0.16 3.21 1.31 2.25 2.86 1.85 0.72 2.00 1.38 1.67 4.29 0.53 0.04 5.74 1.19 4.08 3.06 3.67 0.14 8.29 4.21 6.60
9 2023-03-04 9.77 7.80 5.48 9.04 5.73 7.75 3.06 0.60 0.07 3.35 1.41 2.44 2.75 1.90 0.86 1.92 1.09 1.40 4.72 0.40 0.11 6.42 1.87 4.38 3.41 3.32 0.36 8.01 5.09 6.86
10 2023-03-11 9.42 8.24 4.62 10.16 5.55 8.08 2.77 0.68 0.06 4.18 1.19 2.69 2.79 1.98 0.38 2.23 1.50 1.78 5.04 0.51 0.00 6.74 2.26 4.80 3.70 3.86 0.34 8.34 4.28 7.01
11 2023-03-18 8.77 8.97 4.08 9.45 7.15 8.24 3.48 0.66 0.19 4.58 1.35 3.00 2.39 1.88 0.63 2.32 1.23 1.69 5.07 0.59 0.11 7.94 2.52 4.71 3.70 3.25 0.33 8.02 4.35 6.23
12 2023-03-25 9.31 9.52 4.61 10.26 8.71 9.66 2.98 1.05 0.00 4.95 1.26 3.34 2.56 1.71 0.35 2.13 1.84 1.97 5.45 0.77 0.14 6.69 3.65 5.19 4.53 4.38 0.54 6.99 3.95 5.69
13 2023-04-01 8.35 8.49 4.86 12.58 7.69 10.26 3.17 1.39 0.18 5.21 1.48 3.68 2.51 2.30 0.35 2.12 1.37 1.70 4.79 1.28 0.07 6.90 3.95 5.18 4.04 4.45 0.30 8.16 3.65 5.46
14 2023-04-08 8.95 9.25 5.49 13.59 8.60 12.03 3.45 1.18 0.00 6.26 1.67 4.31 2.56 1.74 0.34 2.31 1.50 1.86 4.61 1.45 0.04 7.70 4.14 6.00 4.51 4.24 0.41 7.79 3.84 4.87
15 2023-04-15 9.16 9.14 8.23 14.59 9.44 13.16 3.83 1.35 0.12 6.94 1.97 4.61 3.04 1.71 0.98 2.62 1.64 2.12 4.09 1.52 0.04 7.47 3.81 5.94 3.56 4.97 1.07 5.52 3.23 4.24
16 2023-04-22 8.67 8.20 6.18 16.10 10.84 13.78 3.89 2.19 0.16 7.88 1.97 5.20 2.79 1.84 0.82 3.21 1.85 2.32 3.93 2.18 0.04 7.16 3.71 5.90 3.64 4.91 0.69 4.99 3.51 4.32
17 2023-04-29 9.88 7.74 7.23 18.29 13.64 16.16 4.07 1.78 0.61 8.67 2.07 6.01 2.63 1.37 0.35 2.54 1.70 2.10 3.53 2.40 0.04 6.58 4.68 5.64 4.36 4.91 0.96 4.11 2.54 3.37
18 2023-05-06 10.97 7.41 5.63 20.03 12.39 16.31 4.84 2.07 0.08 8.42 3.19 5.85 3.57 1.32 0.77 2.89 1.36 2.23 3.15 2.55 0.00 6.37 3.14 5.08 3.42 4.80 0.69 4.00 2.36 3.09
19 2023-05-13 11.03 8.36 7.40 21.71 15.70 19.30 4.09 2.71 0.21 9.09 3.67 5.95 2.96 1.52 0.98 2.63 1.66 2.07 2.51 3.63 0.04 7.46 3.23 4.80 3.46 4.37 0.86 3.71 1.58 2.36
20 2023-05-20 10.82 9.06 8.13 24.52 16.67 19.75 4.12 3.29 0.05 8.60 3.90 6.75 3.18 1.68 0.71 3.35 1.79 2.44 1.79 4.79 0.14 6.85 2.55 4.99 2.71 4.53 0.75 3.31 1.87 2.49
21 2023-05-27 10.68 10.26 6.36 25.86 16.41 21.07 4.33 3.47 0.25 9.56 6.00 7.27 3.26 1.95 1.05 3.51 1.41 2.39 1.44 5.69 0.10 6.80 3.22 4.63 2.15 3.64 1.17 2.37 1.10 1.74
22 2023-06-03 10.83 9.14 4.59 23.76 17.55 20.50 5.12 3.32 0.35 8.71 5.94 6.99 3.16 1.56 0.82 3.45 1.91 2.79 1.23 5.22 0.11 5.39 2.43 3.84 2.31 3.78 0.69 2.06 0.56 1.23
23 2023-06-10 12.30 13.26 6.14 23.65 18.15 21.01 4.42 4.59 0.17 9.74 5.14 6.94 3.10 2.26 0.71 2.72 1.69 2.18 1.41 5.35 0.06 4.49 2.25 3.18 1.50 2.93 0.74 1.86 0.47 1.08
24 2023-06-17 12.22 14.36 8.01 26.76 20.72 23.68 4.26 4.70 1.52 8.25 5.76 7.01 4.24 2.36 1.43 3.80 1.96 2.89 0.97 6.29 0.12 3.48 1.85 2.67 1.61 3.09 0.62 1.54 0.88 1.19
25 2023-06-24 13.93 16.62 8.12 26.73 20.65 23.03 4.37 5.58 2.36 7.61 4.34 6.13 3.82 1.91 1.49 3.30 1.80 2.63 0.82 6.96 0.00 4.18 0.89 2.01 1.63 3.60 0.49 1.55 0.66 1.09
26 2023-07-01 12.97 16.96 9.31 30.25 22.65 25.25 4.22 5.11 2.54 8.72 4.97 6.42 4.04 2.87 1.16 3.49 1.55 2.43 1.02 6.29 0.12 4.28 0.60 2.05 1.13 2.02 0.53 1.77 0.36 0.76
27 2023-07-08 13.93 16.40 12.79 29.34 21.60 24.75 4.90 5.67 4.19 8.37 3.78 6.03 4.63 2.68 1.08 4.02 1.86 2.67 0.76 7.22 0.00 2.35 1.08 1.69 0.77 1.89 0.87 1.29 0.30 0.68
28 2023-07-15 13.74 16.12 14.81 25.35 22.07 23.65 4.09 5.78 2.41 8.38 3.40 5.36 4.27 2.54 1.31 3.02 1.87 2.55 0.52 4.88 0.07 2.28 0.44 1.22 0.59 1.07 0.17 1.17 0.30 0.60
29 2023-07-22 13.27 13.96 18.26 22.73 20.04 21.41 4.04 4.49 3.95 6.57 3.76 4.83 3.37 2.47 1.03 3.00 1.78 2.28 0.75 3.65 0.06 1.58 0.66 0.94 0.52 0.64 0.89 1.32 0.17 0.69
30 2023-07-29 13.02 11.53 22.88 21.00 18.90 20.22 3.43 4.87 2.08 7.25 2.75 4.60 3.45 2.71 0.98 2.97 1.60 2.26 0.41 4.03 0.12 1.47 0.24 0.87 0.55 1.38 1.07 1.33 0.27 0.53
31 2023-08-05 12.69 11.53 29.00 21.14 17.43 19.41 3.14 4.70 1.62 6.03 2.95 4.17 2.74 2.48 0.69 2.57 1.65 2.15 0.18 3.06 0.19 1.35 0.71 0.98 0.60 0.61 0.41 0.67 0.26 0.45
32 2023-08-12 13.94 13.14 22.06 26.07 16.14 20.44 3.28 4.31 2.55 4.64 1.86 3.01 2.30 2.55 1.18 2.68 1.77 2.26 0.41 3.40 0.24 1.11 0.17 0.56 0.39 0.33 0.52 0.87 0.09 0.48
33 2023-08-19 12.79 13.82 22.68 23.10 18.63 20.64 2.91 3.43 1.94 3.75 1.79 2.73 2.12 2.51 0.78 2.95 1.77 2.31 0.34 3.00 0.05 1.10 0.07 0.50 0.77 0.33 0.37 0.72 0.20 0.44
34 2023-08-26 12.54 12.83 21.79 21.44 18.25 19.30 2.15 2.50 4.22 3.86 2.31 3.05 1.65 1.88 0.86 2.70 1.14 1.80 0.30 2.86 0.12 1.06 0.08 0.52 0.58 0.30 0.72 0.84 0.19 0.45

Positive severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) tests

Figure 3: Positive severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) tests (%) in Canada by region by surveillance week
Figure 3

Note: Differences in positivity between jurisdictions can reflect differences in testing practices. Please interpret with caution.

Figure 3: Positive severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) tests (%) in Canada by region by surveillance week
Week Week end Can Tests SARS-CoV-2% Atl Tests SARS-CoV-2% QC Tests SARS-CoV-2% ON Tests SARS-CoV-2% Pr Tests SARS-CoV-2% BC Tests SARS-CoV-2% Terr Tests SARS-CoV-2%
35 2022-09-03 95312 13.40 10317 23.39 26519 12.26 28978 12.71 14414 16.11 14523 7.27 561 9.27
36 2022-09-10 88007 13.07 9220 22.81 25637 12.40 25742 12.04 13370 15.42 13642 7.44 396 10.86
37 2022-09-17 94363 12.73 9788 18.93 26091 12.17 28069 12.72 14241 16.20 15727 6.70 447 13.20
38 2022-09-24 96287 13.61 9345 24.14 26931 13.36 28977 12.35 15042 16.85 15532 6.99 460 10.43
39 2022-10-01 92675 14.45 8311 23.17 29662 13.22 27909 13.57 14884 17.55 11511 9.65 398 7.79
40 2022-10-08 95462 15.06 11290 20.91 31745 13.44 30640 14.46 14766 16.55 6525 13.01 496 6.05
41 2022-10-15 93092 16.58 9618 27.02 32473 13.37 28633 17.02 15441 17.70 6458 13.35 469 5.76
42 2022-10-22 95270 15.39 11962 20.72 32792 12.10 26742 17.29 16894 16.80 6521 11.13 359 7.24
43 2022-10-29 94756 15.78 9563 21.97 33446 11.75 25142 19.65 20195 16.34 5991 10.82 419 8.11
44 2022-11-05 89782 13.91 8906 17.97 32692 11.30 23508 16.57 17710 15.27 6497 8.56 469 8.74
45 2022-11-12 89643 12.43 10513 14.36 31704 10.58 22024 13.83 18372 13.92 6651 9.76 379 6.86
46 2022-11-19 90476 11.97 10650 13.65 30751 11.13 21425 12.63 20655 12.41 6640 9.79 355 7.61
47 2022-11-26 93875 11.76 11661 13.65 33538 11.43 20744 11.77 20339 11.72 7236 10.50 357 8.68
48 2022-12-03 94410 12.12 12354 13.22 35547 12.95 20852 11.38 18486 11.58 6818 9.78 353 7.65
49 2022-12-10 93753 12.63 13445 13.82 34889 13.37 21193 12.30 16624 10.88 7198 12.25 404 4.46
50 2022-12-17 89983 13.10 11781 13.87 34271 14.24 20346 13.88 16279 10.13 6965 10.73 341 14.08
51 2022-12-24 78912 14.15 10225 15.87 30937 14.58 18610 15.78 13249 10.30 5579 12.56 312 9.94
52 2022-12-31 69932 15.61 8458 19.43 25554 15.29 18079 17.14 11699 11.99 5877 14.45 265 6.79
1 2023-01-07 75195 15.09 9934 18.10 24748 13.67 20785 17.96 13420 11.46 5974 14.16 334 13.77
2 2023-01-14 71607 13.41 9630 17.07 22640 12.05 19450 15.40 13853 10.63 5694 12.93 340 8.53
3 2023-01-21 65814 12.26 8435 17.29 21828 10.70 18101 14.33 12528 9.01 4637 11.47 285 8.42
4 2023-01-28 59464 11.35 6656 17.86 19478 9.48 17201 13.27 11564 8.86 4313 9.07 252 6.35
5 2023-02-04 56552 11.56 5958 18.95 18579 10.53 16669 12.57 10944 8.89 4144 8.93 258 5.81
6 2023-02-11 56255 11.89 6104 18.18 19683 11.59 16025 12.38 10040 8.40 4144 10.71 259 9.65
7 2023-02-18 55033 11.79 5613 17.66 19596 11.17 15744 12.81 9694 8.32 4179 10.91 207 14.49
8 2023-02-25 52551 11.74 4878 18.63 19200 11.20 14836 12.15 9171 8.45 4259 11.86 207 13.53
9 2023-03-04 53644 11.19 5550 16.85 19339 10.82 15219 11.39 9232 8.77 4055 10.09 249 9.64
10 2023-03-11 51399 11.43 4959 18.33 18106 10.52 14995 11.34 8995 9.69 4122 11.28 222 10.81
11 2023-03-18 50826 11.59 4754 17.37 17765 10.26 15074 11.90 9191 10.14 3828 13.01 214 9.35
12 2023-03-25 48733 11.29 4607 16.21 16710 10.15 14209 10.89 9087 10.08 3939 14.78 181 7.73
13 2023-04-01 46607 10.85 4341 16.47 17132 9.38 13065 9.94 8216 10.22 3676 15.86 177 6.78
14 2023-04-08 40799 10.92 3595 15.35 15657 10.40 10310 9.28 7634 10.07 3408 15.76 195 5.64
15 2023-04-15 41872 11.37 3771 15.43 16447 10.52 10477 9.48 7269 10.55 3736 18.31 172 2.33
16 2023-04-22 40231 10.94 3412 13.25 16103 9.69 9788 9.28 7057 11.21 3660 18.63 211 4.27
17 2023-04-29 38134 10.08 2700 13.52 15387 9.25 9083 7.85 7102 9.48 3690 18.02 172 2.91
18 2023-05-06 35581 9.85 2743 14.69 14520 8.49 8229 8.48 6765 9.98 3123 15.63 201 3.48
19 2023-05-13 31622 9.60 2557 15.68 12892 8.32 7456 8.64 5733 9.14 2794 13.92 190 2.11
20 2023-05-20 29753 9.33 2463 15.63 11868 8.49 6935 8.51 5833 7.63 2498 13.53 156 5.77
21 2023-05-27 27278 9.23 2311 14.11 10150 8.69 6566 9.15 5577 7.55 2481 11.08 193 6.22
22 2023-06-03 26683 8.45 2143 12.13 9842 8.63 6854 8.59 5368 6.09 2286 10.06 190 0.00
23 2023-06-10 24430 7.44 2274 15.17 9116 7.42 5647 6.34 5078 4.81 2171 8.89 144 1.39
24 2023-06-17 22707 6.69 2096 12.45 8566 5.70 5230 7.09 4579 4.26 2102 9.51 134 3.73
25 2023-06-24 20788 6.18 2126 11.19 7213 5.41 4997 6.36 4294 3.98 2061 8.01 97 3.09
26 2023-07-01 20066 5.79 1828 7.82 7184 5.83 4671 5.44 4209 3.94 2070 8.70 104 0.00
27 2023-07-08 19074 5.75 1685 9.14 6792 5.58 4457 5.47 4118 3.01 1939 9.95 83 2.41
28 2023-07-15 18813 6.14 1688 10.13 6640 5.38 4625 7.26 3925 3.57 1845 8.24 90 0.00
29 2023-07-22 18383 6.94 1560 8.91 6202 6.90 4887 7.47 3875 5.08 1750 8.17 109 2.75
30 2023-07-29 18540 7.70 1675 7.82 6178 7.59 4663 8.19 4105 7.16 1823 8.23 96 2.08
31 2023-08-05 18166 8.41 1684 8.49 6352 9.54 4533 7.65 3826 7.21 1700 9.12 71 1.41
32 2023-08-12 19314 9.39 1571 10.18 7151 11.44 4756 7.74 3986 7.90 1756 8.20 94 9.57
33 2023-08-19 21837 11.58 1716 11.77 7858 13.86 5757 11.06 4493 8.01 1933 12.16 80 7.50
34 2023-08-26 23381 13.40 1825 13.92 8580 14.95 5896 12.52 4816 9.76 2163 17.48 101 9.90

Positive influenza (Flu) tests

Figure 4: Positive influenza (Flu) tests (%) in Canada by region by surveillance week
Figure 4
Figure 4: Positive influenza (Flu) tests (%) in Canada by region by surveillance week
Week Week end Can Tests Can A% Can B% Atl Tests Atl A% Atl B% QC Tests QC A% QC B% ON Tests ON A% ON B% Pr Tests Pr A% Pr B% BC Tests BC A% BC B% Terr Tests Terr A% Terr B%
35 2022-09-03 12769 0.18 0.02 932 0.11 0.11 2404 0.17 0.04 4663 0.11 0.00 2649 0.34 0.04 2006 0.20 0.00 115 0.00 0.00
36 2022-09-10 12637 0.14 0.04 906 0.00 0.00 2520 0.12 0.00 4411 0.16 0.02 2659 0.15 0.08 2055 0.19 0.10 86 0.00 0.00
37 2022-09-17 13539 0.24 0.01 854 0.12 0.00 2618 0.19 0.04 4801 0.31 0.02 2897 0.17 0.00 2247 0.22 0.00 122 0.82 0.00
38 2022-09-24 14521 0.48 0.02 788 0.13 0.00 2714 0.22 0.04 5515 0.38 0.00 3144 0.41 0.03 2226 1.21 0.04 134 1.49 0.00
39 2022-10-01 14943 0.68 0.03 688 0.29 0.15 2873 0.21 0.10 5624 0.66 0.02 3234 0.62 0.00 2411 1.33 0.00 113 3.54 0.00
40 2022-10-08 14585 0.99 0.03 818 0.24 0.00 2339 0.21 0.00 5676 1.02 0.05 3181 0.88 0.03 2430 1.85 0.00 141 4.26 0.00
41 2022-10-15 16307 1.44 0.01 776 1.68 0.00 3275 0.49 0.00 5761 1.89 0.00 3829 0.97 0.03 2540 1.85 0.00 126 10.32 0.00
42 2022-10-22 17826 2.39 0.05 1001 2.60 0.00 3608 0.86 0.03 6230 3.10 0.08 4101 2.12 0.02 2774 2.45 0.07 112 18.75 0.00
43 2022-10-29 18556 5.54 0.03 969 3.72 0.00 3821 1.41 0.08 6013 8.13 0.02 4567 6.90 0.00 3026 3.34 0.07 160 20.63 0.00
44 2022-11-05 21669 10.91 0.03 1209 8.02 0.00 4458 3.45 0.02 7006 11.28 0.04 5715 17.76 0.02 3111 8.07 0.06 170 33.53 0.00
45 2022-11-12 27004 16.20 0.04 2145 11.38 0.05 5731 7.47 0.07 8254 13.28 0.04 7204 27.94 0.03 3507 16.03 0.03 163 19.63 0.00
46 2022-11-19 33291 20.15 0.05 3433 14.54 0.00 6914 13.65 0.04 8727 14.32 0.07 9301 30.99 0.05 4741 23.52 0.04 175 10.86 0.00
47 2022-11-26 40370 24.06 0.04 5140 24.20 0.00 9252 22.84 0.06 9193 16.41 0.03 10338 30.32 0.01 6279 26.74 0.10 168 19.64 0.00
48 2022-12-03 44029 23.83 0.03 6393 27.94 0.02 12431 26.91 0.06 9930 16.05 0.02 9751 24.78 0.03 5334 24.07 0.00 190 34.74 0.00
49 2022-12-10 45446 20.95 0.06 7404 28.55 0.00 12616 25.12 0.13 10560 13.10 0.06 8800 18.65 0.02 5819 19.02 0.07 247 42.51 0.00
50 2022-12-17 44356 17.20 0.07 6554 23.25 0.00 13081 21.57 0.15 10525 10.56 0.02 8264 14.41 0.01 5731 16.18 0.10 201 27.36 0.00
51 2022-12-24 40210 12.50 0.05 5487 16.93 0.00 11742 17.27 0.09 9666 6.57 0.03 8008 9.67 0.01 5122 12.16 0.10 185 19.46 0.00
52 2022-12-31 38348 7.97 0.07 4924 9.36 0.00 10677 12.04 0.14 9370 4.30 0.09 7758 6.38 0.04 5477 7.23 0.04 142 11.97 0.00
1 2023-01-07 39868 4.59 0.07 5460 4.93 0.00 10659 6.90 0.14 10122 3.03 0.08 8311 3.22 0.00 5152 4.54 0.12 164 9.15 0.00
2 2023-01-14 35461 2.24 0.05 4291 2.47 0.02 8879 3.47 0.08 9531 1.29 0.08 7952 1.84 0.01 4646 2.17 0.02 162 5.56 0.00
3 2023-01-21 31232 1.39 0.14 3858 1.17 0.03 8035 2.50 0.25 8462 0.79 0.05 6806 1.16 0.25 3936 1.07 0.05 135 0.00 0.00
4 2023-01-28 28799 0.91 0.15 3184 0.44 0.03 7597 1.29 0.17 8022 0.57 0.15 6332 1.01 0.21 3571 1.09 0.08 93 0.00 0.00
5 2023-02-04 28377 0.75 0.28 3221 0.25 0.00 7614 1.06 0.56 7653 0.55 0.25 6261 1.12 0.24 3527 0.37 0.09 101 0.00 0.00
6 2023-02-11 27982 0.68 0.34 3116 0.10 0.03 7619 1.00 0.45 7451 0.44 0.31 6138 1.06 0.39 3538 0.40 0.34 120 0.00 0.00
7 2023-02-18 26289 0.55 0.29 3068 0.10 0.00 6834 0.91 0.45 7239 0.23 0.18 5621 0.87 0.30 3444 0.41 0.41 83 0.00 0.00
8 2023-02-25 25449 0.57 0.50 2864 0.07 0.03 6409 1.09 0.94 7307 0.23 0.33 5236 0.67 0.44 3545 0.62 0.28 88 0.00 10.23
9 2023-03-04 26136 0.63 0.70 2917 0.31 0.07 6757 1.11 1.42 7347 0.37 0.48 5626 0.48 0.46 3373 0.77 0.53 116 0.00 4.31
10 2023-03-11 25805 0.62 0.78 2949 0.31 0.03 6864 1.18 1.35 7129 0.28 0.70 5349 0.41 0.60 3413 0.82 0.64 101 0.00 2.97
11 2023-03-18 25613 0.52 1.16 2824 0.35 0.14 6927 0.90 1.82 6957 0.34 0.86 5382 0.37 1.26 3416 0.53 0.94 107 0.00 5.61
12 2023-03-25 24111 0.60 1.29 2665 0.41 0.19 5617 1.46 2.39 7066 0.24 1.16 5198 0.33 1.00 3444 0.49 0.87 121 0.00 6.61
13 2023-04-01 24352 0.64 1.74 2435 0.45 0.21 6887 1.47 3.44 6826 0.38 1.35 4959 0.22 1.11 3126 0.22 0.61 119 0.00 12.61
14 2023-04-08 22978 0.38 1.85 2099 0.10 0.19 6354 0.76 3.12 6082 0.23 1.66 5198 0.21 1.48 3114 0.39 0.74 131 0.00 16.79
15 2023-04-15 23421 0.60 1.93 2175 0.18 0.23 6913 1.27 3.31 6142 0.33 1.73 4918 0.37 1.40 3156 0.32 0.44 117 0.00 24.79
16 2023-04-22 22666 0.51 1.85 1928 1.09 0.10 6585 0.80 2.99 5961 0.29 1.41 4720 0.38 1.33 3293 0.21 0.73 179 0.00 27.93
17 2023-04-29 21493 0.48 1.83 1771 0.28 0.17 6155 0.70 2.79 5560 0.11 1.67 4595 0.67 1.87 3292 0.52 0.30 120 0.83 25.00
18 2023-05-06 20580 0.50 1.81 1775 0.17 0.28 6066 0.45 2.75 5250 0.25 1.81 4639 1.08 1.64 2701 0.37 0.41 149 0.00 12.75
19 2023-05-13 18936 0.66 1.46 1679 0.30 0.24 5732 0.66 2.08 4563 0.35 1.47 4393 1.34 1.55 2436 0.29 0.25 133 0.00 9.77
20 2023-05-20 17524 0.77 1.29 1623 0.62 0.18 5277 0.95 1.80 4619 0.50 1.45 3909 1.13 1.13 2010 0.30 0.10 86 2.33 17.44
21 2023-05-27 16495 0.51 1.13 1568 0.19 0.13 4895 0.65 1.59 4117 0.27 1.29 3752 0.64 0.96 2039 0.69 0.39 124 0.00 8.06
22 2023-06-03 16098 0.53 1.02 1504 0.00 0.07 4581 0.37 1.66 4283 0.40 1.19 3671 0.60 0.63 1907 1.21 0.21 152 3.95 5.92
23 2023-06-10 14412 0.62 0.69 1577 0.19 0.00 3699 0.49 1.05 3719 0.67 0.99 3533 0.59 0.34 1774 1.24 0.56 110 0.91 0.91
24 2023-06-17 13758 0.57 0.47 1496 0.27 0.27 3470 0.61 0.78 3614 0.47 0.50 3320 0.42 0.36 1759 1.14 0.11 99 3.03 2.02
25 2023-06-24 13253 0.60 0.35 1466 0.14 0.00 3340 0.63 0.57 3415 0.32 0.56 3225 0.28 0.16 1735 2.13 0.12 72 0.00 1.39
26 2023-07-01 13121 0.52 0.19 1320 0.23 0.00 3338 0.30 0.42 3403 0.24 0.21 3173 0.57 0.09 1817 1.60 0.06 70 0.00 0.00
27 2023-07-08 12397 0.40 0.19 1059 0.19 0.09 3218 0.19 0.22 3163 0.38 0.19 3127 0.42 0.26 1767 0.96 0.00 63 0.00 1.59
28 2023-07-15 12316 0.58 0.22 1053 0.09 0.00 3019 0.17 0.10 3411 0.91 0.47 3098 0.36 0.16 1669 1.38 0.18 66 1.52 0.00
29 2023-07-22 11589 0.45 0.09 915 0.33 0.00 2694 0.30 0.07 3435 0.55 0.17 3011 0.20 0.03 1446 1.04 0.07 88 1.14 0.00
30 2023-07-29 11590 0.45 0.04 964 0.10 0.00 2645 0.15 0.04 3356 0.27 0.06 3043 0.39 0.03 1513 1.72 0.07 69 0.00 0.00
31 2023-08-05 11369 0.38 0.08 856 0.00 0.12 2700 0.26 0.07 3299 0.18 0.06 3074 0.29 0.10 1383 1.45 0.07 57 1.75 0.00
32 2023-08-12 11798 0.64 0.06 870 0.00 0.00 2923 0.34 0.07 3540 0.34 0.11 2953 0.68 0.03 1452 2.27 0.00 60 1.67 0.00
33 2023-08-19 13162 0.56 0.08 901 1.33 0.00 3225 0.40 0.06 3941 0.38 0.15 3421 0.35 0.06 1624 1.35 0.06 50 0.00 0.00
34 2023-08-26 13226 0.50 0.05 905 0.00 0.00 3377 0.36 0.09 3949 0.66 0.03 3229 0.15 0.06 1706 1.35 0.00 60 0.00 0.00

Positive respiratory syncytial virus (RSV) tests

Figure 5: Positive respiratory syncytial virus (RSV) tests (%) in Canada by region by surveillance week
Figure 5
Figure 5: Positive respiratory syncytial virus (RSV) tests (%) in Canada by region by surveillance week
Week Week end Can Tests RSV% Atl Tests RSV% QC Tests RSV% ON Tests RSV% Pr Tests RSV% BC Tests RSV% Terr Tests RSV%
35 2022-09-03 11585 1.14 832 1.44 1737 3.51 4663 0.54 2443 0.65 1795 0.50 115 7.83
36 2022-09-10 11442 1.12 785 0.64 1737 2.71 4411 1.00 2508 0.52 1915 0.73 86 5.81
37 2022-09-17 12331 1.05 721 0.97 1851 3.51 4801 0.60 2709 0.66 2127 0.38 122 2.46
38 2022-09-24 13335 1.40 707 1.13 1908 5.56 5515 0.98 2921 0.34 2150 0.33 134 1.49
39 2022-10-01 13629 2.11 556 3.06 2029 7.69 5623 1.35 2996 0.73 2312 0.65 113 0.88
40 2022-10-08 13346 2.44 677 2.95 1727 8.92 5675 1.92 2807 0.64 2319 0.95 141 2.13
41 2022-10-15 14337 3.52 695 3.45 2330 11.12 5761 2.46 3141 1.34 2284 1.53 126 1.59
42 2022-10-22 15783 4.56 799 3.38 2644 13.09 6230 3.60 3447 2.15 2551 1.72 112 3.57
43 2022-10-29 16274 6.59 929 4.20 2751 17.52 6010 6.09 3745 2.62 2680 3.10 159 3.14
44 2022-11-05 18915 7.63 964 6.64 3126 20.15 7006 7.09 4658 3.24 2993 3.31 168 1.79
45 2022-11-12 23546 7.54 1867 9.16 3986 16.88 8242 7.01 5898 3.49 3390 4.25 163 1.84
46 2022-11-19 27482 7.51 2538 6.82 4620 14.11 8721 7.41 7387 4.67 4041 5.99 175 2.86
47 2022-11-26 34682 6.65 4680 6.24 6170 9.98 9192 6.80 8329 5.01 6143 5.73 168 2.98
48 2022-12-03 37476 6.93 6110 5.35 8002 7.91 9926 6.85 8157 6.61 5091 8.15 190 1.58
49 2022-12-10 38234 7.36 6227 5.77 8206 6.37 10558 7.62 7504 8.49 5492 8.78 247 2.83
50 2022-12-17 37745 8.71 5921 6.67 8545 5.36 10522 8.33 7140 13.04 5416 11.48 201 2.49
51 2022-12-24 34329 9.26 4905 6.81 7661 5.33 9664 8.14 7114 13.66 4800 13.96 185 4.86
52 2022-12-31 32948 10.69 4669 7.90 6616 6.48 9370 8.19 7032 16.74 5119 15.06 142 7.04
1 2023-01-07 33446 10.40 5144 8.98 6335 6.46 10120 7.99 7536 15.96 4147 14.23 164 3.05
2 2023-01-14 30533 9.12 4078 7.41 5279 4.83 9531 7.09 7108 13.89 4375 12.75 162 4.32
3 2023-01-21 26624 8.47 3667 8.67 4553 6.50 8462 5.13 6065 12.38 3742 11.76 135 11.11
4 2023-01-28 24389 7.97 3037 7.74 4237 5.81 8022 4.62 5580 11.31 3420 13.25 93 8.60
5 2023-02-04 24100 7.18 2906 7.91 4304 5.72 7653 3.78 5758 10.04 3378 11.13 101 11.88
6 2023-02-11 24263 5.79 2953 7.42 4604 3.84 7451 3.21 5772 7.17 3363 10.20 120 10.83
7 2023-02-18 23026 5.13 2897 6.83 4209 3.64 7239 3.18 5299 6.30 3298 7.82 84 9.52
8 2023-02-25 22395 4.54 2721 6.43 4066 3.91 7307 2.29 4872 5.69 3341 6.76 88 14.77
9 2023-03-04 22965 3.73 2800 4.39 4224 3.10 7347 2.10 5274 4.29 3204 6.68 116 6.90
10 2023-03-11 22558 2.82 2843 3.13 4150 2.67 7130 1.40 5060 2.92 3274 5.19 101 18.81
11 2023-03-18 22373 2.20 2727 2.57 4216 2.21 6957 1.29 5084 1.89 3282 3.69 107 20.56
12 2023-03-25 21508 1.97 2598 2.27 3523 2.36 7065 1.13 4917 1.46 3284 3.53 121 11.57
13 2023-04-01 21203 1.64 2369 2.41 4251 1.88 6826 0.88 4693 1.26 2945 2.85 119 6.72
14 2023-04-08 20026 1.34 2088 1.92 3817 1.91 6082 0.64 4955 0.93 2953 1.79 131 12.98
15 2023-04-15 20156 1.41 2164 2.22 4170 1.77 6142 0.94 4653 0.84 2910 1.92 117 7.69
16 2023-04-22 19854 1.31 1942 2.57 4094 1.69 5961 0.57 4501 0.73 3177 1.89 179 7.82
17 2023-04-29 18841 1.14 1755 2.05 3925 1.91 5560 0.49 4355 0.62 3126 1.31 120 6.67
18 2023-05-06 18059 0.86 1771 1.92 3858 1.30 5250 0.50 4422 0.45 2609 0.65 149 6.04
19 2023-05-13 16607 0.72 1636 1.28 3609 1.08 4563 0.48 4232 0.28 2434 0.49 133 10.53
20 2023-05-20 15326 0.61 1617 1.11 3253 0.92 4619 0.54 3741 0.21 2010 0.40 86 5.81
21 2023-05-27 14441 0.40 1560 0.90 2991 0.67 4116 0.27 3615 0.08 2035 0.25 124 4.03
22 2023-06-03 14242 0.55 1500 1.00 2876 1.08 4283 0.16 3524 0.40 1907 0.26 152 4.61
23 2023-06-10 13314 0.41 1572 0.64 2733 0.55 3719 0.27 3407 0.23 1773 0.39 110 4.55
24 2023-06-17 12735 0.32 1490 0.54 2537 0.75 3613 0.14 3238 0.19 1758 0.17 99 0.00
25 2023-06-24 12283 0.34 1460 0.62 2451 0.69 3415 0.12 3151 0.13 1734 0.46 72 0.00
26 2023-07-01 12269 0.37 1317 0.68 2575 0.70 3403 0.38 3087 0.06 1817 0.17 70 1.43
27 2023-07-08 11619 0.33 1055 0.95 2533 0.51 3163 0.28 3038 0.07 1767 0.17 63 1.59
28 2023-07-15 11556 0.38 1050 0.19 2348 0.81 3410 0.38 3014 0.17 1668 0.24 66 1.52
29 2023-07-22 10904 0.48 913 0.55 2100 1.29 3430 0.38 2927 0.17 1446 0.14 88 0.00
30 2023-07-29 10924 0.48 956 0.63 2083 1.39 3355 0.27 2948 0.10 1513 0.20 69 2.90
31 2023-08-05 10735 0.48 850 0.71 2144 0.89 3297 0.30 3004 0.40 1383 0.00 57 7.02
32 2023-08-12 10965 0.55 867 0.58 2214 1.13 3540 0.56 2832 0.14 1452 0.34 60 1.67
33 2023-08-19 12182 0.43 889 0.67 2374 0.72 3941 0.48 3304 0.18 1624 0.06 50 6.00
34 2023-08-26 12310 0.51 893 0.34 2585 1.16 3949 0.48 3117 0.29 1706 0.06 60 1.67

Positive human parainfluenza virus (HPIV) tests

Figure 6: Positive human parainfluenza virus (HPIV) tests (%) in Canada by region by surveillance week
Figure 6
Figure 6: Positive human parainfluenza virus (HPIV) tests (%) in Canada by region by surveillance week
Week Week End Can Tests HPIV% Atl Tests HPIV% QC Tests HPIV% ON Tests HPIV% Pr Tests HPIV% BC Tests HPIV%
35 2022-09-03 3433 2.80 294 0.34 619 2.75 1151 3.21 967 2.69 402 3.73
36 2022-09-10 3454 3.21 280 5.36 646 3.87 1081 2.96 1025 2.44 422 3.32
37 2022-09-17 3973 3.02 301 5.65 661 3.33 1368 3.36 1112 2.07 530 2.26
38 2022-09-24 4589 2.40 334 1.80 717 2.65 1717 2.56 1274 1.73 547 3.47
39 2022-10-01 4878 3.10 286 1.75 728 4.81 1999 3.60 1327 1.81 538 2.79
40 2022-10-08 5057 3.70 298 2.35 578 6.40 2228 2.92 1386 3.68 567 4.76
41 2022-10-15 5998 3.52 265 5.28 851 4.70 2960 3.04 1323 3.40 599 3.67
42 2022-10-22 7244 4.21 354 3.39 904 4.09 3859 3.55 1420 4.72 707 7.36
43 2022-10-29 8429 4.41 441 3.40 944 4.45 4632 3.52 1572 4.20 839 10.25
44 2022-11-05 9258 4.14 362 7.73 974 2.98 5243 2.96 1857 4.79 822 9.98
45 2022-11-12 10628 3.90 458 5.02 1103 2.81 5832 3.24 2451 4.28 783 8.43
46 2022-11-19 11671 3.97 575 5.91 1243 3.06 5943 3.30 2973 3.87 937 8.54
47 2022-11-26 12299 3.63 677 5.91 1319 3.64 5937 3.17 2644 2.91 1722 5.46
48 2022-12-03 12364 3.04 808 3.71 1439 1.88 6344 2.70 2817 3.48 956 5.23
49 2022-12-10 12670 3.03 962 3.64 1438 2.09 6470 2.43 2710 3.51 1090 6.15
50 2022-12-17 12356 2.98 988 2.94 1350 1.93 6718 2.44 2231 4.03 1069 5.52
51 2022-12-24 11701 3.09 783 3.19 1147 2.01 6638 2.65 2147 3.91 986 5.38
52 2022-12-31 11030 3.32 638 2.82 1016 2.17 6308 2.92 2063 4.36 1005 5.17
1 2023-01-07 11997 3.63 802 3.12 1017 3.24 6863 2.93 2351 4.08 964 8.30
2 2023-01-14 11015 3.24 526 3.80 828 2.17 6446 2.82 2351 3.19 864 7.18
3 2023-01-21 9972 2.92 498 4.02 849 3.06 5818 2.20 1971 4.21 836 4.07
4 2023-01-28 9363 2.78 413 2.91 813 2.58 5596 2.52 1761 2.73 780 4.87
5 2023-02-04 9383 2.70 596 3.19 788 3.05 5337 1.93 1870 3.58 792 5.05
6 2023-02-11 9047 2.67 420 5.95 816 3.19 5274 1.80 1767 3.00 770 5.58
7 2023-02-18 8811 2.63 449 4.45 860 3.72 5232 1.43 1542 4.54 728 4.81
8 2023-02-25 8628 2.55 421 5.70 795 2.77 5230 1.55 1481 3.65 701 5.56
9 2023-03-04 9020 3.06 421 9.03 788 4.44 5409 1.37 1641 5.42 761 5.26
10 2023-03-11 8553 2.77 472 9.53 766 3.13 5019 1.45 1542 3.18 754 6.10
11 2023-03-18 8476 3.48 428 10.51 764 4.32 4991 1.74 1525 5.11 768 6.77
12 2023-03-25 8626 2.98 456 9.87 641 2.65 5162 1.53 1633 4.72 734 5.31
13 2023-04-01 8443 3.17 467 7.92 789 3.80 5061 1.90 1484 4.11 642 6.85
14 2023-04-08 7692 3.45 399 9.27 731 3.28 4346 1.84 1517 5.01 699 6.87
15 2023-04-15 8023 3.83 482 9.13 825 4.00 4592 2.16 1446 6.09 678 6.34
16 2023-04-22 7629 3.89 450 7.11 821 3.90 4321 2.31 1385 6.21 652 7.21
17 2023-04-29 7257 4.07 443 8.13 802 4.11 4032 2.90 1289 4.81 691 6.80
18 2023-05-06 7234 4.84 390 7.69 806 3.85 4052 3.38 1352 7.10 634 8.83
19 2023-05-13 6623 4.09 342 4.68 802 4.36 3592 3.31 1288 5.12 599 5.84
20 2023-05-20 6356 4.12 367 5.72 723 4.84 3546 3.19 1084 3.78 636 8.18
21 2023-05-27 5885 4.33 378 8.73 712 3.37 3131 3.39 1047 4.97 617 6.48
22 2023-06-03 5933 5.12 305 9.18 739 3.79 3325 4.42 966 5.49 598 8.03
23 2023-06-10 5590 4.42 332 6.02 712 4.35 2983 4.06 1010 4.06 553 6.15
24 2023-06-17 5284 4.26 323 4.95 708 5.23 2764 3.36 943 4.45 546 6.78
25 2023-06-24 5107 4.37 329 4.26 723 4.84 2673 3.74 844 3.91 538 7.62
26 2023-07-01 5097 4.22 281 3.91 731 4.51 2716 4.05 857 3.15 512 6.64
27 2023-07-08 4812 4.90 278 4.68 714 4.62 2435 4.27 879 3.64 506 10.67
28 2023-07-15 5134 4.09 306 1.96 704 4.83 2716 3.79 907 2.54 501 8.78
29 2023-07-22 5045 4.04 268 4.48 705 4.40 2672 4.30 925 2.16 475 5.47
30 2023-07-29 5045 3.43 308 3.57 753 3.19 2624 3.62 878 2.28 482 4.77
31 2023-08-05 4903 3.14 264 1.89 696 3.45 2573 3.34 896 1.67 474 5.06
32 2023-08-12 5116 3.28 324 2.16 768 3.39 2711 3.36 851 2.47 462 4.98
33 2023-08-19 5644 2.91 286 2.80 807 2.23 3029 2.87 1039 1.54 483 7.25
34 2023-08-26 5480 2.15 296 2.70 898 2.90 2981 2.11 836 1.08 469 2.56

Positive adenovirus (ADV) tests

Figure 7: Positive adenovirus (ADV) tests (%) in Canada by region by surveillance week
Figure 7
Figure 7: Positive adenovirus (ADV) tests (%) in Canada by region by surveillance week
Week Week End Can Tests ADV% Atl Tests ADV% QC Tests ADV% ON Tests ADV% Pr Tests ADV% BC Tests ADV%
35 2022-09-03 3472 2.28 294 6.12 632 2.53 1179 0.76 965 2.69 402 2.49
36 2022-09-10 3478 2.19 280 3.57 659 3.03 1089 1.10 1028 2.43 422 2.13
37 2022-09-17 3991 2.10 301 4.65 679 3.09 1369 1.46 1111 1.35 530 2.64
38 2022-09-24 4604 1.59 334 1.20 731 3.42 1717 1.05 1275 1.41 547 1.46
39 2022-10-01 4894 2.21 286 2.80 742 4.18 2001 1.35 1327 2.11 538 2.60
40 2022-10-08 5068 1.80 298 4.03 583 5.66 2234 1.16 1386 1.23 567 0.53
41 2022-10-15 6013 2.03 265 3.77 864 4.63 2962 0.95 1323 2.12 599 2.67
42 2022-10-22 7255 1.67 354 1.98 915 4.04 3859 0.88 1420 1.69 707 2.69
43 2022-10-29 8441 1.79 441 2.04 955 5.76 4633 1.01 1572 1.97 839 1.07
44 2022-11-05 9271 2.02 362 6.08 987 5.27 5243 1.16 1857 1.99 822 1.82
45 2022-11-12 10610 1.99 458 5.46 1117 6.62 5800 1.03 2451 1.59 783 1.66
46 2022-11-19 11695 1.87 575 4.35 1265 4.66 5946 1.19 2972 1.38 937 2.45
47 2022-11-26 12290 1.89 677 3.99 1333 5.85 5937 0.94 2633 1.52 1710 1.81
48 2022-12-03 12381 1.87 808 4.33 1455 5.09 6344 1.04 2818 1.38 956 1.88
49 2022-12-10 12679 1.68 962 2.81 1450 4.69 6470 1.07 2707 1.00 1090 2.02
50 2022-12-17 12368 2.29 987 4.05 1364 6.16 6718 1.31 2230 1.70 1069 3.09
51 2022-12-24 11718 1.76 783 2.30 1161 5.51 6638 1.11 2150 1.12 986 2.64
52 2022-12-31 11030 1.80 638 2.04 1020 6.57 6308 1.08 2059 1.51 1005 1.99
1 2023-01-07 12009 1.88 802 3.74 1027 6.52 6865 1.12 2351 1.45 964 1.87
2 2023-01-14 11023 1.87 526 3.42 838 6.21 6446 1.12 2349 1.66 864 2.89
3 2023-01-21 9991 1.97 502 4.18 865 5.32 5818 1.31 1970 1.17 836 3.71
4 2023-01-28 9374 2.35 413 2.18 823 8.51 5596 1.39 1762 2.27 780 2.95
5 2023-02-04 9398 2.44 596 4.87 804 9.20 5337 1.14 1869 1.93 792 3.66
6 2023-02-11 9060 2.14 420 2.38 830 9.16 5274 1.14 1766 1.64 770 2.47
7 2023-02-18 8824 2.31 449 2.45 872 6.88 5233 1.55 1542 1.56 728 3.85
8 2023-02-25 8647 2.86 424 3.77 812 9.48 5230 1.91 1480 1.62 701 4.28
9 2023-03-04 9031 2.75 421 3.09 799 8.64 5409 1.85 1641 2.32 761 3.68
10 2023-03-11 8573 2.79 472 2.75 786 9.29 5019 1.61 1542 2.40 754 4.64
11 2023-03-18 8487 2.39 428 3.04 776 7.09 4991 1.62 1524 1.71 768 3.65
12 2023-03-25 8640 2.56 456 2.41 655 7.94 5162 1.72 1633 2.33 734 4.22
13 2023-04-01 8460 2.51 467 2.78 806 7.32 5061 1.70 1484 1.48 642 4.98
14 2023-04-08 7702 2.56 399 2.26 742 8.09 4346 1.56 1516 2.18 699 3.86
15 2023-04-15 8039 3.04 482 2.28 841 7.13 4592 2.05 1446 2.84 678 5.60
16 2023-04-22 7670 2.79 450 2.00 839 6.79 4322 2.22 1385 1.95 674 3.71
17 2023-04-29 7265 2.63 443 3.16 811 7.03 4032 1.69 1288 1.40 691 4.92
18 2023-05-06 7253 3.57 390 6.67 824 6.55 4052 2.59 1353 2.88 634 5.52
19 2023-05-13 6651 2.96 342 2.05 831 4.93 3592 2.67 1287 1.63 599 5.34
20 2023-05-20 6379 3.18 367 2.72 746 5.09 3546 2.59 1084 2.21 636 6.13
21 2023-05-27 5923 3.26 379 3.17 749 6.68 3131 2.43 1047 2.20 617 5.19
22 2023-06-03 5923 3.16 305 5.25 771 5.06 3325 2.38 966 2.90 556 4.50
23 2023-06-10 5616 3.10 332 3.92 738 4.88 2983 2.55 1010 2.38 553 4.52
24 2023-06-17 5307 4.24 323 3.41 731 4.65 2764 3.87 943 3.39 546 7.51
25 2023-06-24 5131 3.82 329 2.43 747 6.69 2673 3.07 844 2.49 538 6.51
26 2023-07-01 5122 4.04 281 3.91 757 3.30 2716 3.13 856 4.67 512 8.98
27 2023-07-08 4843 4.63 278 5.04 747 4.28 2435 3.82 877 4.33 506 9.29
28 2023-07-15 5156 4.27 306 6.54 726 4.41 2716 3.46 907 4.19 501 7.19
29 2023-07-22 5069 3.37 268 4.48 730 4.93 2672 2.25 924 3.57 475 6.32
30 2023-07-29 5076 3.45 308 5.52 784 3.06 2624 2.29 878 5.13 482 6.02
31 2023-08-05 4927 2.74 264 2.65 720 4.44 2573 1.48 896 3.35 474 5.91
32 2023-08-12 5131 2.30 324 2.78 784 1.79 2711 1.95 850 2.82 462 3.90
33 2023-08-19 5659 2.12 286 2.45 822 1.95 3029 1.32 1039 3.08 483 5.18
34 2023-08-26 5499 1.65 296 2.36 916 2.51 2982 1.01 836 2.15 469 2.77

Positive human metapneumovirus (HMPV) tests

Figure 8: Positive human metapneumovirus (HMPV) tests (%) in Canada by region by surveillance week
Figure 8
Figure 8: Positive human metapneumovirus (HMPV) tests (%) in Canada by region by surveillance week
Week Week End Can Tests HMPV% Atl Tests HMPV% QC Tests HMPV% ON Tests HMPV% Pr Tests HMPV% BC Tests HMPV%
35 2022-09-03 3492 1.80 294 2.38 619 2.91 1179 0.93 998 1.90 402 1.99
36 2022-09-10 3489 1.81 280 1.79 649 3.39 1089 0.92 1049 1.72 422 1.90
37 2022-09-17 3992 1.38 301 2.66 665 3.31 1368 0.51 1127 0.80 530 1.70
38 2022-09-24 4603 1.61 334 0.90 723 4.98 1714 0.53 1285 1.48 547 1.28
39 2022-10-01 4895 1.43 286 1.75 729 4.53 2001 0.45 1341 1.04 538 1.67
40 2022-10-08 5096 1.43 298 1.01 581 5.34 2236 0.45 1414 1.27 567 1.94
41 2022-10-15 6027 1.66 265 1.89 857 6.07 2962 0.41 1344 1.26 599 2.34
42 2022-10-22 7277 1.59 354 0.85 911 6.70 3865 0.52 1440 1.67 707 1.13
43 2022-10-29 8450 1.78 441 1.81 960 6.35 4632 0.97 1577 1.78 839 0.95
44 2022-11-05 9271 1.79 362 2.76 977 7.57 5245 0.57 1865 1.98 822 1.82
45 2022-11-12 10656 2.06 458 3.06 1123 7.84 5838 0.57 2453 2.77 783 2.04
46 2022-11-19 11676 1.89 575 3.65 1247 6.58 5955 0.27 2962 2.87 937 1.81
47 2022-11-26 12281 1.78 677 2.22 1325 6.11 5951 0.55 2618 2.02 1710 2.16
48 2022-12-03 12376 1.86 808 3.22 1440 4.17 6360 0.64 2812 2.88 956 2.30
49 2022-12-10 12530 1.93 962 3.95 1439 3.61 6474 0.85 2565 2.96 1090 1.93
50 2022-12-17 12385 1.92 987 2.84 1350 3.48 6726 0.86 2253 3.86 1069 1.68
51 2022-12-24 11712 2.23 773 3.36 1152 4.08 6652 1.05 2149 4.75 986 1.62
52 2022-12-31 11053 2.75 638 4.08 1020 3.33 6330 1.50 2060 5.92 1005 2.69
1 2023-01-07 12016 2.94 802 3.49 1018 3.24 6871 1.67 2361 5.89 964 3.94
2 2023-01-14 11046 2.61 526 3.04 831 2.77 6464 1.79 2361 4.62 864 2.78
3 2023-01-21 10031 2.56 502 2.99 854 3.16 5849 1.54 1990 4.82 836 3.47
4 2023-01-28 9404 2.71 413 2.18 813 3.32 5631 1.69 1767 5.09 780 4.36
5 2023-02-04 9432 2.96 596 4.03 792 2.15 5367 2.11 1885 4.88 792 4.17
6 2023-02-11 9062 3.73 420 5.48 817 3.67 5291 2.51 1764 5.27 770 7.66
7 2023-02-18 8821 4.41 449 9.58 861 3.25 5234 3.31 1549 5.62 728 7.97
8 2023-02-25 8642 4.29 424 5.90 797 2.13 5232 4.05 1488 4.44 701 7.28
9 2023-03-04 9019 4.72 421 5.94 791 2.53 5408 4.60 1638 4.82 761 6.96
10 2023-03-11 8563 5.04 472 5.93 768 3.13 5023 5.02 1546 3.69 754 9.42
11 2023-03-18 8505 5.07 428 7.24 770 3.64 4994 4.71 1545 4.40 768 8.98
12 2023-03-25 8649 5.45 456 5.04 643 3.58 5167 5.98 1649 4.00 734 6.81
13 2023-04-01 8462 4.79 467 3.00 794 3.53 5062 5.18 1497 3.34 642 7.94
14 2023-04-08 7722 4.61 399 3.01 732 3.96 4352 5.08 1540 2.60 699 7.73
15 2023-04-15 8035 4.09 482 3.32 828 2.90 4591 4.36 1456 2.68 678 7.37
16 2023-04-22 7677 3.93 450 4.89 825 1.82 4325 4.49 1403 2.42 674 5.49
17 2023-04-29 7276 3.53 443 3.84 804 2.36 4036 3.77 1302 2.23 691 5.79
18 2023-05-06 7265 3.15 390 1.28 810 2.10 4053 3.95 1378 1.45 634 4.26
19 2023-05-13 6646 2.51 342 2.05 804 3.73 3595 2.78 1306 0.31 599 4.34
20 2023-05-20 6367 1.79 367 0.27 727 2.20 3545 2.00 1092 0.46 636 3.30
21 2023-05-27 5907 1.44 379 1.06 713 1.96 3136 1.40 1062 0.19 617 3.40
22 2023-06-03 5915 1.23 305 2.30 741 1.48 3327 1.20 986 0.61 556 1.62
23 2023-06-10 4911 1.41 332 1.51 710 1.27 2982 1.37 334 1.80 553 1.45
24 2023-06-17 5267 0.97 323 0.62 710 0.99 2765 0.76 923 1.63 546 1.10
25 2023-06-24 5134 0.82 329 0.61 723 1.24 2675 0.97 869 0.35 538 0.37
26 2023-07-01 5119 1.02 281 0.36 730 1.23 2718 1.10 878 0.34 512 1.76
27 2023-07-08 4839 0.76 278 0.00 713 1.12 2435 0.94 907 0.11 506 0.99
28 2023-07-15 5151 0.52 306 0.00 702 0.85 2719 0.59 923 0.22 501 0.60
29 2023-07-22 5066 0.75 268 0.00 704 1.28 2675 0.75 944 0.42 475 1.05
30 2023-07-29 5073 0.41 308 0.32 752 1.20 2627 0.30 904 0.00 482 0.62
31 2023-08-05 4922 0.18 264 0.00 695 0.29 2570 0.16 919 0.11 474 0.42
32 2023-08-12 5138 0.41 324 0.31 770 0.78 2714 0.41 868 0.23 462 0.22
33 2023-08-19 5660 0.34 286 0.00 807 0.62 3036 0.40 1048 0.00 483 0.41
34 2023-08-26 5006 0.30 296 0.00 897 1.23 2985 0.13 359 0.00 469 0.00

Positive enterovirus/rhinovirus (EV/RV) tests

Figure 9: Positive enterovirus/rhinovirus (EV/RV) tests (%) in Canada by region by surveillance week
Figure 9
Figure 9: Positive enterovirus/rhinovirus (EV/RV) tests (%) in Canada by region by surveillance week
Week Week End Can Tests EV/RV% Atl Tests EV/RV% QC Tests EV/RV% ON Tests EV/RV% Pr Tests EV/RV% BC Tests EV/RV%
35 2022-09-03 2845 15.47 294 30.27 N.A. N.A. 1179 10.18 947 16.79 394 15.48
36 2022-09-10 2817 16.22 280 21.79 N.A. N.A. 1089 11.20 1013 18.76 417 17.99
37 2022-09-17 3337 21.73 301 23.59 N.A. N.A. 1368 20.10 1101 20.62 522 24.33
38 2022-09-24 3847 23.50 334 22.16 N.A. N.A. 1689 22.20 1255 21.59 538 31.78
39 2022-10-01 4150 22.89 286 27.62 N.A. N.A. 2001 19.94 1310 22.29 521 31.67
40 2022-10-08 4488 19.32 298 20.47 N.A. N.A. 2235 15.84 1365 19.85 546 29.67
41 2022-10-15 5161 16.70 265 24.91 N.A. N.A. 2963 11.51 1305 20.15 579 28.67
42 2022-10-22 6332 12.95 354 21.47 N.A. N.A. 3863 7.77 1389 18.14 678 26.40
43 2022-10-29 7496 11.05 441 19.05 N.A. N.A. 4632 7.38 1555 13.95 814 20.64
44 2022-11-05 8272 10.23 362 23.20 N.A. N.A. 5245 6.43 1827 12.10 796 24.37
45 2022-11-12 9526 7.77 458 19.87 N.A. N.A. 5837 4.99 2415 7.99 759 19.89
46 2022-11-19 10427 6.93 575 18.43 N.A. N.A. 5952 4.96 2945 6.25 904 14.49
47 2022-11-26 10986 4.88 677 9.75 N.A. N.A. 5927 3.36 2619 4.39 1678 8.70
48 2022-12-03 10959 4.74 808 9.78 N.A. N.A. 6360 3.21 2787 4.81 931 10.20
49 2022-12-10 11309 4.09 962 7.59 N.A. N.A. 6474 2.90 2693 3.64 1064 8.93
50 2022-12-17 11052 4.58 987 8.81 N.A. N.A. 6726 3.20 2213 4.84 1038 8.67
51 2022-12-24 10580 4.49 783 5.75 N.A. N.A. 6652 3.77 2125 4.89 956 7.53
52 2022-12-31 10049 4.50 638 6.11 N.A. N.A. 6330 3.95 2047 5.23 972 5.25
1 2023-01-07 10998 4.19 802 3.12 N.A. N.A. 6872 4.13 2336 4.32 937 5.02
2 2023-01-14 10199 4.71 526 6.65 N.A. N.A. 6464 4.05 2327 4.86 832 7.81
3 2023-01-21 9133 6.68 502 7.57 N.A. N.A. 5849 5.85 1945 5.86 807 13.88
4 2023-01-28 8568 8.22 413 11.14 N.A. N.A. 5631 6.68 1747 8.70 754 16.84
5 2023-02-04 8581 8.94 596 11.07 N.A. N.A. 5367 7.60 1827 8.65 764 17.15
6 2023-02-11 8243 9.97 420 12.62 N.A. N.A. 5291 8.20 1748 10.30 740 20.00
7 2023-02-18 7927 9.87 449 11.58 N.A. N.A. 5234 8.31 1517 10.61 707 18.39
8 2023-02-25 7812 9.55 424 12.03 N.A. N.A. 5232 8.12 1463 10.25 671 17.44
9 2023-03-04 8218 9.77 421 9.26 N.A. N.A. 5408 8.69 1621 10.30 736 16.03
10 2023-03-11 7758 9.42 472 9.32 N.A. N.A. 5023 7.78 1521 12.29 714 14.85
11 2023-03-18 7677 8.77 428 8.41 N.A. N.A. 4994 7.21 1491 10.60 740 15.27
12 2023-03-25 7973 9.31 456 12.06 N.A. N.A. 5167 7.14 1619 12.91 710 14.65
13 2023-04-01 7640 8.35 467 11.78 N.A. N.A. 5062 7.13 1474 9.43 620 12.90
14 2023-04-08 6941 8.95 399 11.03 N.A. N.A. 4352 7.61 1494 10.44 672 12.65
15 2023-04-15 7171 9.16 482 11.00 N.A. N.A. 4591 7.19 1427 11.70 658 16.11
16 2023-04-22 6819 8.67 450 9.33 N.A. N.A. 4325 6.82 1375 11.93 649 13.41
17 2023-04-29 6436 9.88 443 15.12 N.A. N.A. 4036 7.53 1271 12.90 671 14.61
18 2023-05-06 6416 10.97 390 18.21 N.A. N.A. 4053 8.54 1342 13.41 615 17.24
19 2023-05-13 5821 11.03 342 10.53 N.A. N.A. 3596 8.87 1287 13.99 578 17.65
20 2023-05-20 5629 10.82 367 11.99 N.A. N.A. 3545 8.27 1084 15.50 621 16.59
21 2023-05-27 5169 10.68 379 10.03 N.A. N.A. 3137 8.83 1044 13.12 596 16.11
22 2023-06-03 5152 10.83 305 9.18 N.A. N.A. 3327 8.54 955 17.07 536 14.55
23 2023-06-10 4862 12.30 332 15.36 N.A. N.A. 2982 9.32 994 16.90 532 18.23
24 2023-06-17 4542 12.22 323 13.62 N.A. N.A. 2766 8.28 919 18.39 524 20.80
25 2023-06-24 4379 13.93 329 18.54 N.A. N.A. 2675 9.91 835 19.88 525 21.71
26 2023-07-01 4350 12.97 281 14.23 N.A. N.A. 2719 9.01 849 22.03 490 17.76
27 2023-07-08 4077 13.93 278 16.91 N.A. N.A. 2435 8.91 871 22.16 485 22.06
28 2023-07-15 4402 13.74 306 12.42 N.A. N.A. 2719 10.48 893 22.28 479 17.12
29 2023-07-22 4333 13.27 268 16.04 N.A. N.A. 2675 9.57 913 21.36 462 16.45
30 2023-07-29 4278 13.02 308 12.99 N.A. N.A. 2627 11.08 868 18.32 465 13.12
31 2023-08-05 4177 12.69 264 14.77 N.A. N.A. 2570 11.17 879 15.36 455 13.85
32 2023-08-12 4346 13.94 324 19.14 - - 2714 11.72 840 19.64 451 12.20
33 2023-08-19 4809 12.79 286 25.87 - - 3036 10.87 1031 15.42 456 11.40
34 2023-08-26 4547 12.54 296 17.57 - - 2984 11.13 830 14.10 437 15.79

Positive human coronavirus (HCoV) tests

Figure 10: Positive human coronavirus (HCoV) tests (%) in Canada by region by surveillance week
Figure 10
Figure 10: Positive human coronavirus (HCoV) tests (%) in Canada by region by surveillance week
Week Week End Can Tests HCoV% Atl Tests HCoV% QC Tests HCoV% ON Tests HCoV% Pr Tests HCoV% BC Tests HCoV%
35 2022-09-03 2818 0.53 294 0.68 610 0.66 523 0.57 997 0.20 394 1.02
36 2022-09-10 2877 0.38 280 0.71 639 0.16 495 0.20 1046 0.67 417 0.00
37 2022-09-17 3264 0.28 301 0.00 654 0.31 658 0.46 1128 0.35 522 0.00
38 2022-09-24 3716 0.32 334 0.00 705 0.57 853 0.23 1286 0.47 538 0.00
39 2022-10-01 4034 0.59 286 0.35 716 0.84 1170 0.34 1341 0.75 521 0.58
40 2022-10-08 4079 0.93 298 1.01 568 0.35 1253 0.56 1414 1.27 546 1.47
41 2022-10-15 4922 1.00 265 0.38 842 1.07 1889 0.53 1347 2.00 579 0.35
42 2022-10-22 6026 1.16 354 0.00 884 1.02 2671 0.79 1439 2.50 678 0.59
43 2022-10-29 7155 1.86 386 0.78 922 0.65 3451 1.45 1581 4.49 814 0.37
44 2022-11-05 7767 2.54 362 0.83 943 2.55 3800 1.97 1866 5.04 796 0.13
45 2022-11-12 9087 3.00 458 0.87 1087 2.48 4325 2.80 2457 4.56 759 1.19
46 2022-11-19 10076 3.54 575 2.61 1193 3.52 4433 2.96 2971 5.02 904 2.21
47 2022-11-26 10690 3.24 677 2.66 1290 3.80 4433 3.50 2612 3.83 1678 1.43
48 2022-12-03 10723 3.94 808 2.72 1381 5.29 4788 4.24 2815 3.13 931 3.97
49 2022-12-10 10887 4.48 962 4.89 1415 5.02 4875 4.21 2571 4.24 1064 5.26
50 2022-12-17 10765 5.13 987 5.78 1350 5.63 5133 4.56 2257 4.70 1038 7.61
51 2022-12-24 10056 5.28 783 6.00 1147 6.63 5024 3.86 2149 5.07 953 11.02
52 2022-12-31 9437 4.73 638 7.21 1016 6.69 4746 3.08 2065 3.83 972 11.01
1 2023-01-07 10141 4.40 802 10.97 1017 5.11 5025 2.95 2360 3.35 937 8.43
2 2023-01-14 9360 4.01 526 9.89 829 3.50 4805 3.64 2368 2.53 832 7.09
3 2023-01-21 8614 3.46 502 6.37 849 4.71 4464 2.91 1992 2.06 807 6.82
4 2023-01-28 7905 2.63 413 4.12 813 5.17 4157 1.88 1768 1.81 754 5.17
5 2023-02-04 7997 3.20 596 4.70 788 5.96 3962 2.42 1887 2.12 764 5.89
6 2023-02-11 7619 2.64 420 5.24 816 6.62 3877 1.81 1766 1.70 740 3.38
7 2023-02-18 7381 3.14 449 4.45 860 5.93 3812 2.62 1553 1.80 707 4.67
8 2023-02-25 7223 3.06 424 4.95 795 5.28 3844 2.78 1489 1.88 671 3.43
9 2023-03-04 7544 3.41 421 5.23 788 7.99 3962 2.73 1637 2.75 736 2.58
10 2023-03-11 7115 3.70 472 5.30 766 8.09 3615 3.10 1548 2.26 714 4.06
11 2023-03-18 7116 3.70 428 4.67 764 6.41 3638 3.55 1546 2.65 740 3.24
12 2023-03-25 7212 4.53 456 2.85 642 9.66 3754 4.45 1650 3.09 710 4.79
13 2023-04-01 7010 4.04 467 4.28 789 6.08 3636 3.91 1498 3.67 620 2.90
14 2023-04-08 6318 4.51 399 3.76 731 6.02 2976 4.50 1540 4.16 672 4.17
15 2023-04-15 6632 3.56 482 3.53 825 5.21 3209 3.02 1458 3.57 658 4.10
16 2023-04-22 6369 3.64 450 4.00 821 3.41 3046 3.81 1403 3.56 649 3.08
17 2023-04-29 6056 4.36 443 7.90 802 2.74 2836 4.23 1304 3.99 671 5.22
18 2023-05-06 5940 3.42 390 4.36 806 1.49 2752 4.18 1377 2.61 615 3.74
19 2023-05-13 5486 3.46 342 3.80 802 1.75 2456 4.15 1308 3.21 578 3.29
20 2023-05-20 5136 2.71 367 6.81 723 1.94 2333 2.70 1092 2.11 621 2.25
21 2023-05-27 4786 2.15 379 8.97 712 0.84 2036 1.77 1063 1.41 596 2.01
22 2023-06-03 4882 2.31 305 5.57 739 1.22 2258 2.30 986 2.64 594 1.52
23 2023-06-10 4595 1.50 332 6.33 712 0.28 1994 1.45 1025 0.68 532 1.88
24 2023-06-17 4297 1.61 323 2.48 708 1.27 1775 1.63 967 1.03 524 2.48
25 2023-06-24 4228 1.63 329 4.26 723 0.83 1781 1.74 870 1.03 525 1.71
26 2023-07-01 4166 1.13 281 2.14 731 0.27 1784 1.07 880 1.48 490 1.43
27 2023-07-08 4014 0.77 278 1.80 714 0.70 1628 0.37 909 0.77 485 1.65
28 2023-07-15 4212 0.59 306 0.33 704 0.14 1799 0.44 924 0.54 479 2.09
29 2023-07-22 4195 0.52 268 1.49 705 0.43 1815 0.44 945 0.42 462 0.65
30 2023-07-29 4208 0.55 308 0.97 753 0.53 1773 0.56 909 0.22 465 0.86
31 2023-08-05 3999 0.60 264 0.38 696 0.29 1698 0.77 921 0.22 420 1.43
32 2023-08-12 4140 0.39 324 0.62 768 0.13 1728 0.41 869 0.23 451 0.89
33 2023-08-19 4655 0.77 286 0.70 807 0.25 2048 0.68 1058 1.42 456 0.66
34 2023-08-26 4447 0.58 296 1.35 898 0.22 1954 0.15 862 1.39 437 1.14

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