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Respiratory Virus Report, Week 22 - ending June 3, 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 22 (week ending June 3, 2023) in Canada, participating RVDSS laboratories reported 2,257 detections of SARS-CoV-2 from 26,681 tests (8.5% positive). Among non-SARS-CoV-2 respiratory viruses, where test volumes are lower (range of 4,984 to 16,128 tests), activity of nearly all viruses is within or below expected levels.

  • Activity of influenza remains low at inter-seasonal levels. Both influenza A (85 detections; 0.5% positive) and influenza B (160 detections; 1.0% positive) are within expected levels typical of this time of year.
  • Activity of all other non-SARS-CoV-2 respiratory viruses is near or below expected levels typical of this time of year.
  • 34/35 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 June 3, 2023 (surveillance week 2023-22)
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 383 36 218 0 0 0 0 0 218 11 218 1 0 3 16 0 218 10 218 3 218 18 218 15
Prince Edward Island 69 9 10 0 0 0 0 0 10 0 5 0 0 2 0 0 5 1 5 1 5 0 5 0
Nova Scotia 1042 150 683 0 0 0 0 0 683 2 20 2 0 0 0 0 20 1 20 1 20 1 20 1
New Brunswick 649 65 593 0 0 0 0 1 589 2 62 4 0 0 0 0 62 4 62 2 62 9 62 1
Atlantic 2143 260 1504 0 0 0 0 1 1500 15 305 7 0 5 16 0 305 16 305 7 305 28 305 17
Région Nord-Est 1263 117 1009 0 0 2 2 5 195 2 40 0 0 3 0 0 40 2 40 0 N.C. N.C. 40 0
Québec-Chaudière-Appalaches 1721 135 376 0 0 1 1 7 376 4 164 0 0 0 1 0 194 13 164 5 N.C. N.C. 164 0
Centre-du-Québec 1650 140 176 0 0 0 0 6 173 2 31 0 0 0 1 0 31 1 31 0 N.C. N.C. 31 0
Montréal-Laval 2845 249 1933 0 0 7 7 43 1143 13 487 3 0 16 3 0 487 20 489 6 N.C. N.C. 487 9
Ouest du Québec 1104 108 266 0 0 1 1 5 266 1 12 0 0 0 1 0 12 2 12 0 N.C. N.C. 12 0
Montérégie 1255 100 814 0 0 6 6 10 716 9 4 0 0 0 0 0 4 0 4 0 N.C. N.C. 4 0
Province of Québec 9838 849 4574 0 0 17 17 76 2869 31 738 3 0 19 6 0 768 38 740 11 N.C. N.C. 738 9
P.H.O.L. - Ottawa 115 31 59 1 0 0 1 0 59 0 44 0 0 0 0 3 44 0 44 0 44 4 44 1
EORLA 974 74 260 0 0 2 2 4 260 1 28 0 1 0 0 0 28 0 28 0 28 8 28 1
P.H.O.L. - Kingston 279 12 43 0 0 0 0 0 43 0 38 0 0 0 0 1 38 0 38 0 38 4 38 4
UHN / Mount Sinai Hospital 1042 80 621 0 0 4 4 1 621 0 52 0 0 5 0 0 52 0 52 0 52 6 52 1
P.H.O.L. - Toronto 476 91 609 3 0 0 2 7 609 2 594 0 0 0 0 47 594 17 594 12 594 76 594 24
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 1027 62 1027 3 0 0 3 21 1027 0 1031 0 0 0 0 35 1031 17 1033 8 1033 54 1033 5
P.H.O.L. - Sault Ste. Marie 9 0 6 0 0 0 0 0 6 0 6 0 0 0 0 0 6 0 6 0 6 3 6 0
P.H.O.L. - Timmins 75 8 28 0 0 0 0 0 28 0 22 0 0 0 0 1 22 0 22 1 22 2 22 2
St. Joseph's - London 835 39 79 0 0 0 0 0 79 0 53 0 0 0 0 2 53 3 53 2 53 8 53 1
P.H.O.L. - London 255 18 153 1 0 0 1 0 153 0 130 0 0 0 0 17 130 2 130 5 130 12 130 4
P.H.O.L. - Orillia 18 3 26 0 0 0 0 0 26 3 26 0 0 0 0 4 26 0 26 0 26 3 26 1
P.H.O.L. - Thunder Bay 39 0 12 0 0 0 0 0 12 0 11 0 0 0 0 0 11 0 11 1 11 3 11 0
P.H.O.L. - Sudbury 27 17 11 0 0 0 0 0 11 0 11 0 0 0 0 0 11 0 11 0 11 1 11 0
P.H.O.L. - Hamilton 218 45 125 0 0 0 0 3 125 0 106 0 0 0 0 3 106 8 106 2 106 15 106 4
P.H.O.L. - Peterborough 61 1 71 0 0 0 0 1 71 0 45 0 0 0 0 3 45 3 45 1 45 12 45 2
St. Joseph's - Hamilton 1320 101 1069 0 0 4 4 14 1069 1 1069 0 0 23 0 0 1069 28 1069 7 1069 57 0 0
Sault Area Hospital 84 7 84 0 0 0 0 0 84 0 59 1 0 1 0 0 59 1 59 1 59 16 59 2
Province of Ontario 6854 589 4283 8 0 10 17 51 4283 7 3325 1 1 29 0 116 3325 79 3327 40 3327 284 2258 52
Manitoba 1035 76 938 0 0 4 4 5 938 3 73 0 1 0 1 0 73 1 93 2 73 24 93 5
Saskatchewan 1224 36 503 0 0 10 10 1 466 0 206 16 4 1 7 0 206 10 206 4 206 36 206 6
Alberta 3111 217 2287 8 0 0 8 14 2198 7 810 4 6 5 2 0 810 8 810 0 810 76 810 11
Prairies 5370 329 3728 8 0 14 22 20 3602 10 1089 20 11 6 10 0 1089 19 1109 6 1089 136 1109 22
British Columbia 2286 230 1887 13 1 0 23 4 1887 5 578 20 3 14 10 0 536 25 536 8 516 74 574 9
Yukon 31 0 14 0 0 0 0 0 14 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 29 0 29 6 0 0 6 0 29 4 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 29 5 N.C. N.C.
Nunavut 130 0 109 0 0 0 0 8 109 3 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 190 0 152 6 0 0 6 8 152 7 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 29 5 N.C. N.C.
CANADA 26681 2257 16128 35 1 41 85 160 14293 75 6035 51 15 73 42 116 6023 177 6017 72 5266 527 4984 109

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 June 3, 2023 (surveillance weeks 2022-35 to 2023-22)
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 22068 3854 12771 8 246 674 928 9 12771 604 12771 59 31 379 111 0 12771 251 12771 380 12771 1080 12771 514
Prince Edward Island 33127 7271 4031 1 119 248 368 4 4031 384 1151 19 27 80 7 0 1151 75 1151 38 1151 338 1151 35
Nova Scotia 131689 25785 43061 0 4 3644 3648 13 43051 2415 1355 9 16 32 4 0 1362 55 1352 45 1362 253 1362 60
New Brunswick 107637 15813 49532 23 133 4433 4589 29 41502 2053 3752 32 31 161 8 0 3752 264 3752 183 3752 678 3697 233
Atlantic 294521 52723 109395 32 502 8999 9533 55 101355 5456 19029 119 105 652 130 0 19036 645 19026 646 19036 2349 18981 842
Région Nord-Est 94485 11437 56130 0 4 3872 3876 80 16725 1381 1673 29 5 92 0 0 1674 136 1665 97 N.C. N.C. 1674 112
Québec-Chaudière-Appalaches 193369 18270 26704 0 0 2901 2901 167 26014 1931 7708 25 5 92 7 0 8304 679 7708 354 N.C. N.C. 7708 339
Centre-du-Québec 158607 21532 16283 0 0 1782 1782 107 14530 993 1106 13 1 52 12 0 1106 126 1106 74 N.C. N.C. 1106 72
Montréal-Laval 216918 26496 106532 0 9 6268 6277 1543 57729 2760 23408 139 21 535 42 0 23417 1039 23564 810 N.C. N.C. 23093 791
Ouest du Québec 118762 15158 24433 0 7 2200 2207 186 22136 1323 1095 21 0 67 4 0 1094 199 1095 60 N.C. N.C. 1096 63
Montérégie 150702 16986 32242 0 0 1805 1805 250 29050 1210 162 0 0 2 0 0 162 4 162 6 N.C. N.C. 162 5
Province of Québec 932843 109879 262324 0 20 18828 18848 2333 166184 9598 35152 227 32 840 65 0 35757 2183 35300 1401 N.C. N.C. 34839 1382
P.H.O.L. - Ottawa 29376 7421 5852 19 136 66 215 2 5852 355 4102 0 0 0 0 126 4102 18 4102 115 4102 386 4102 207
EORLA 91092 8793 17079 0 0 1416 1416 49 17079 1298 1384 11 5 56 17 0 1384 51 1384 61 1384 309 1384 99
P.H.O.L. - Kingston 31007 4953 3221 5 92 38 135 3 3220 180 2563 0 0 0 0 116 2564 28 2564 81 2563 323 2564 104
UHN / Mount Sinai Hospital 99296 7541 24713 7 44 356 407 56 24713 319 2198 2 2 39 2 0 2165 7 2198 15 2198 78 2198 88
P.H.O.L. - Toronto 52851 11161 30027 135 2415 151 1146 63 29995 1350 26610 0 0 0 0 1109 26614 548 26609 1025 26610 2572 26609 1316
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 88180 6176 88180 128 1471 727 2326 360 88181 2213 65466 4 0 16 0 770 65479 674 65759 954 65707 2304 65599 1035
P.H.O.L. - Sault Ste. Marie 1847 346 713 1 52 15 58 0 713 25 623 0 0 0 0 54 623 4 623 30 623 50 623 44
P.H.O.L. - Timmins 9387 901 1101 0 161 6 156 0 1099 98 1019 0 0 0 0 56 1019 14 1019 29 1019 86 1019 48
St. Joseph's - London 125569 15250 21116 0 0 886 886 69 21116 1016 2309 0 0 0 0 87 2343 79 2343 70 2343 340 1931 107
P.H.O.L. - London 38215 8040 11721 14 585 63 644 25 11720 888 9426 0 0 0 0 480 9427 133 9427 246 9426 922 9427 320
P.H.O.L. - Orillia 598 267 2427 6 261 23 290 12 2427 233 2352 0 0 0 0 138 2353 70 2352 79 2352 346 2352 107
P.H.O.L. - Thunder Bay 8628 1717 1106 0 107 3 110 0 1105 96 980 0 0 0 0 38 980 18 980 29 980 116 981 38
P.H.O.L. - Sudbury 2150 319 818 1 65 14 67 0 818 79 697 0 0 0 0 30 697 8 697 45 697 42 697 25
P.H.O.L. - Hamilton 26457 7002 9762 17 302 92 409 39 9759 555 7262 0 0 0 0 295 7264 166 7262 257 7262 727 7262 294
P.H.O.L. - Peterborough 5429 1026 1667 1 67 11 79 16 1667 115 1345 0 0 0 0 53 1345 31 1345 48 1345 228 1345 48
St. Joseph's - Hamilton 101993 13746 51586 0 0 2743 2743 494 51586 2289 51586 0 0 1073 0 0 51586 751 51586 915 51586 3418 0 0
Sault Area Hospital 12609 2129 8525 1 262 258 521 7 8525 170 2880 36 7 73 4 0 2880 50 2880 101 2880 307 2880 82
Province of Ontario 724684 96788 279614 335 6020 6868 11608 1195 279575 11279 182802 53 14 1257 23 3352 182825 2650 183130 4100 183077 12554 130973 3962
Manitoba 73805 11963 44538 18 202 1804 2024 66 44538 1782 5606 45 38 173 8 0 5596 140 5951 221 5606 852 5951 222
Saskatchewan 169997 13701 43152 2 41 3968 4011 77 34987 2216 14444 144 110 530 66 0 14446 380 14446 665 14447 1576 14442 519
Alberta 243127 34383 136670 1048 7304 2844 11196 760 121456 7663 47630 364 132 949 146 0 47615 663 47568 1262 46875 4410 47630 1307
Prairies 486929 60047 224360 1068 7547 8616 17231 903 200981 11661 67680 553 280 1652 220 0 67657 1183 67965 2148 66928 6838 68023 2048
British Columbia 240531 25971 138895 434 4356 304 8958 309 130812 8240 30402 337 202 1134 193 6 30370 947 30370 1175 29418 4556 29473 1131
Yukon 5276 400 948 2 136 0 138 9 946 59 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 1690 192 1536 10 147 1 158 5 1536 114 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 1536 306 N.C. N.C.
Nunavut 5139 393 2967 4 230 3 237 228 2967 151 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 12105 985 5451 16 513 4 533 242 5449 324 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 1536 306 N.C. N.C.
CANADA 2691613 346393 1020039 1885 18958 43619 66711 5037 884356 46558 335065 1289 633 5535 631 3358 335645 7608 335791 9470 299995 26603 282289 9365

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 0.47 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 9.20 0.52 9.73 0.01 4.40 0.12 1.67 1.11 0.04 0.00 5.43 0.91 3.93 0.41 2.25 0.25 4.10 1.23 2.13
22 2023-06-03 8.46 0.53 8.38 0.00 2.98 0.29 1.35 0.99 0.06 0.00 3.51 0.53 2.51 0.52 2.40 0.26 3.72 0.86 1.71
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 10.59 10.26 6.36 25.86 16.41 21.07 4.34 3.47 0.25 9.56 6.00 7.27 3.28 1.95 1.05 3.51 1.41 2.39 1.45 5.69 0.10 6.80 3.22 4.63 2.17 3.64 1.17 2.37 1.10 1.74
22 2023-06-03 10.01 9.14 4.59 23.76 17.55 20.50 4.92 3.32 0.35 8.71 5.94 6.99 2.94 1.56 0.82 3.45 1.91 2.79 1.20 5.22 0.11 5.39 2.43 3.84 2.19 3.78 0.69 2.06 0.56 1.23

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 27270 9.20 2311 14.11 10148 8.68 6566 9.15 5571 7.45 2481 11.08 193 6.22
22 2023-06-03 26681 8.46 2143 12.13 9838 8.63 6854 8.59 5370 6.13 2286 10.06 190 0.00

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 21491 0.47 1.83 1771 0.28 0.17 6155 0.70 2.79 5560 0.11 1.67 4593 0.63 1.87 3292 0.52 0.30 120 0.83 25.00
18 2023-05-06 20579 0.50 1.81 1775 0.17 0.28 6066 0.45 2.75 5250 0.25 1.81 4638 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 16433 0.52 1.11 1568 0.19 0.13 4896 0.65 1.59 4117 0.27 1.29 3689 0.70 0.84 2039 0.69 0.39 124 0.00 8.06
22 2023-06-03 16128 0.53 0.99 1504 0.00 0.07 4574 0.37 1.66 4283 0.40 1.19 3728 0.59 0.54 1887 1.22 0.21 152 3.95 5.26

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 18839 1.14 1755 2.05 3925 1.91 5560 0.49 4353 0.62 3126 1.31 120 6.67
18 2023-05-06 18058 0.86 1771 1.92 3858 1.30 5250 0.50 4421 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 14392 0.41 1560 0.90 2992 0.67 4115 0.27 3566 0.11 2035 0.25 124 4.03
22 2023-06-03 14293 0.52 1500 1.00 2869 1.08 4283 0.16 3602 0.28 1887 0.26 152 4.61

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 5850 4.34 378 8.73 713 3.37 3130 3.39 1012 5.04 617 6.48
22 2023-06-03 6035 4.92 305 9.18 738 3.79 3325 4.42 1089 4.32 578 8.13

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 5888 3.28 379 3.17 750 6.67 3130 2.43 1012 2.27 617 5.19
22 2023-06-03 6023 2.94 305 5.25 768 4.95 3325 2.38 1089 1.74 536 4.66

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 5873 1.45 379 1.06 714 1.96 3136 1.40 1027 0.19 617 3.40
22 2023-06-03 6017 1.20 305 2.30 740 1.49 3327 1.20 1109 0.54 536 1.49

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 - - 1179 10.18 947 16.79 394 15.48
36 2022-09-10 2817 16.22 280 21.79 - - 1089 11.20 1013 18.76 417 17.99
37 2022-09-17 3337 21.73 301 23.59 - - 1368 20.10 1101 20.62 522 24.33
38 2022-09-24 3847 23.50 334 22.16 - - 1689 22.20 1255 21.59 538 31.78
39 2022-10-01 4150 22.89 286 27.62 - - 2001 19.94 1310 22.29 521 31.67
40 2022-10-08 4488 19.32 298 20.47 - - 2235 15.84 1365 19.85 546 29.67
41 2022-10-15 5161 16.70 265 24.91 - - 2963 11.51 1305 20.15 579 28.67
42 2022-10-22 6332 12.95 354 21.47 - - 3863 7.77 1389 18.14 678 26.40
43 2022-10-29 7496 11.05 441 19.05 - - 4632 7.38 1555 13.95 814 20.64
44 2022-11-05 8272 10.23 362 23.20 - - 5245 6.43 1827 12.10 796 24.37
45 2022-11-12 9526 7.77 458 19.87 - - 5837 4.99 2415 7.99 759 19.89
46 2022-11-19 10427 6.93 575 18.43 - - 5952 4.96 2945 6.25 904 14.49
47 2022-11-26 10986 4.88 677 9.75 - - 5927 3.36 2619 4.39 1678 8.70
48 2022-12-03 10959 4.74 808 9.78 - - 6360 3.21 2787 4.81 931 10.20
49 2022-12-10 11309 4.09 962 7.59 - - 6474 2.90 2693 3.64 1064 8.93
50 2022-12-17 11052 4.58 987 8.81 - - 6726 3.20 2213 4.84 1038 8.67
51 2022-12-24 10580 4.49 783 5.75 - - 6652 3.77 2125 4.89 956 7.53
52 2022-12-31 10049 4.50 638 6.11 - - 6330 3.95 2047 5.23 972 5.25
1 2023-01-07 10998 4.19 802 3.12 - - 6872 4.13 2336 4.32 937 5.02
2 2023-01-14 10199 4.71 526 6.65 - - 6464 4.05 2327 4.86 832 7.81
3 2023-01-21 9133 6.68 502 7.57 - - 5849 5.85 1945 5.86 807 13.88
4 2023-01-28 8568 8.22 413 11.14 - - 5631 6.68 1747 8.70 754 16.84
5 2023-02-04 8581 8.94 596 11.07 - - 5367 7.60 1827 8.65 764 17.15
6 2023-02-11 8243 9.97 420 12.62 - - 5291 8.20 1748 10.30 740 20.00
7 2023-02-18 7927 9.87 449 11.58 - - 5234 8.31 1517 10.61 707 18.39
8 2023-02-25 7812 9.55 424 12.03 - - 5232 8.12 1463 10.25 671 17.44
9 2023-03-04 8218 9.77 421 9.26 - - 5408 8.69 1621 10.30 736 16.03
10 2023-03-11 7758 9.42 472 9.32 - - 5023 7.78 1521 12.29 714 14.85
11 2023-03-18 7677 8.77 428 8.41 - - 4994 7.21 1491 10.60 740 15.27
12 2023-03-25 7973 9.31 456 12.06 - - 5167 7.14 1619 12.91 710 14.65
13 2023-04-01 7640 8.35 467 11.78 - - 5062 7.13 1474 9.43 620 12.90
14 2023-04-08 6941 8.95 399 11.03 - - 4352 7.61 1494 10.44 672 12.65
15 2023-04-15 7171 9.16 482 11.00 - - 4591 7.19 1427 11.70 658 16.11
16 2023-04-22 6819 8.67 450 9.33 - - 4325 6.82 1375 11.93 649 13.41
17 2023-04-29 6436 9.88 443 15.12 - - 4036 7.53 1271 12.90 671 14.61
18 2023-05-06 6416 10.97 390 18.21 - - 4053 8.54 1342 13.41 615 17.24
19 2023-05-13 5821 11.03 342 10.53 - - 3596 8.87 1287 13.99 578 17.65
20 2023-05-20 5629 10.82 367 11.99 - - 3545 8.27 1084 15.50 621 16.59
21 2023-05-27 5136 10.59 379 10.03 - - 3136 8.83 1012 12.75 596 16.11
22 2023-06-03 5266 10.01 305 9.18 - - 3327 8.54 1089 12.49 516 14.34

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 4752 2.17 379 8.97 713 0.84 2036 1.77 1028 1.46 596 2.01
22 2023-06-03 4984 2.19 305 5.57 738 1.22 2258 2.30 1109 1.98 574 1.57

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