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Respiratory Virus Report, Week 19 - ending May 13, 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 19 (week ending May 13, 2023) in Canada, participating RVDSS laboratories reported 3,083 detections of SARS-CoV-2 from 32,053 tests (9.6% positive). Among non-SARS-CoV-2 respiratory viruses, where test volumes are lower (range of 5,051 to 17,881 tests), activity of nearly all viruses is within or below expected levels.

  • Activity of influenza remains low at inter-seasonal levels.
    • Influenza B activity (263 detections; 1.5% positive) remains slightly higher than influenza A activity (113 detections; 0.6% positive), but both remain below expected levels.
  • 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 May 13, 2023 (surveillance week 2023-19)
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 421 54 259 0 0 1 1 2 259 11 259 1 0 7 3 0 259 3 259 4 259 24 259 13
Prince Edward Island 100 9 27 0 0 1 1 0 27 2 1 0 0 0 0 0 1 0 1 0 1 1 1 0
Nova Scotia 1370 254 764 0 0 2 2 1 764 4 22 0 0 1 0 0 22 2 22 0 22 3 22 0
New Brunswick 666 84 629 0 0 1 1 1 586 4 60 2 1 1 0 0 60 2 60 3 60 8 60 0
Atlantic 2557 401 1679 0 0 5 5 4 1636 21 342 3 1 9 3 0 342 7 342 7 342 36 342 13
Région Nord-Est 1512 145 1242 0 0 9 9 3 237 3 64 3 0 4 0 0 64 4 64 3 N.C. N.C. 64 5
Québec-Chaudière-Appalaches 2131 88 463 0 0 7 7 14 453 10 169 0 0 3 2 0 190 11 169 3 N.C. N.C. 169 2
Centre-du-Québec 2432 255 268 0 0 1 1 9 263 4 32 0 1 2 3 0 32 4 32 2 N.C. N.C. 32 0
Montréal-Laval 3436 298 2262 0 0 17 17 61 1351 13 518 2 1 11 2 0 518 17 520 22 N.C. N.C. 518 6
Ouest du Québec 1503 138 462 0 0 3 3 14 452 2 10 0 0 1 0 0 10 4 10 0 N.C. N.C. 10 1
Montérégie 1897 148 1039 0 0 1 1 18 851 7 5 0 0 0 0 0 5 0 5 0 N.C. N.C. 5 0
Province of Québec 12911 1072 5736 0 0 38 38 119 3607 39 798 5 2 21 7 0 819 40 800 30 N.C. N.C. 798 14
P.H.O.L. - Ottawa 179 39 97 0 0 0 0 0 97 1 81 0 0 0 0 8 81 1 81 3 81 10 81 14
EORLA 1047 42 327 0 0 4 4 3 327 2 23 1 0 1 0 0 23 0 23 1 23 3 23 3
P.H.O.L. - Kingston 368 25 52 0 0 0 0 0 52 0 45 0 0 0 0 8 45 0 45 0 45 3 45 3
UHN / Mount Sinai Hospital 985 72 445 0 0 2 2 2 445 5 29 0 0 0 0 0 29 0 29 0 29 3 29 1
P.H.O.L. - Toronto 403 84 608 4 1 0 2 3 608 5 564 0 0 0 0 29 564 17 564 47 564 86 564 36
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 1170 72 1170 0 0 2 2 18 1170 2 1183 0 0 0 0 27 1183 15 1187 14 1187 58 1187 29
P.H.O.L. - Sault Ste. Marie 31 9 6 0 0 0 0 0 6 0 6 0 0 0 0 1 6 0 6 0 6 0 6 0
P.H.O.L. - Timmins 100 16 17 0 0 0 0 0 17 0 12 0 0 0 0 0 12 0 12 1 12 1 12 1
St. Joseph's - London 952 61 166 0 0 0 0 0 166 0 40 0 0 0 0 1 40 1 40 2 40 6 40 3
P.H.O.L. - London 392 100 175 0 0 0 0 1 175 4 145 0 0 0 0 11 145 4 145 6 145 20 145 3
P.H.O.L. - Orillia 7 0 35 0 0 0 0 1 35 0 33 0 0 0 0 1 33 4 33 0 33 7 33 0
P.H.O.L. - Thunder Bay 55 6 8 0 0 0 0 0 8 0 6 0 0 0 0 0 6 0 6 0 6 0 6 1
P.H.O.L. - Sudbury 20 2 16 0 0 0 0 0 16 1 9 0 0 0 0 1 9 1 9 1 9 0 9 0
P.H.O.L. - Hamilton 213 30 158 1 0 0 1 2 158 2 152 0 0 0 0 8 152 7 152 11 152 24 152 5
P.H.O.L. - Peterborough 76 16 59 0 0 0 0 3 59 0 57 0 0 0 0 2 57 4 57 3 57 20 57 2
St. Joseph's - Hamilton 1374 66 1139 0 0 4 4 33 1139 0 1139 0 0 17 0 0 1139 38 1139 11 1139 66 0 0
Sault Area Hospital 85 4 85 0 0 0 0 1 85 0 66 0 1 2 0 0 66 4 66 0 66 12 66 1
Province of Ontario 7457 644 4563 5 1 12 15 67 4563 22 3590 1 1 20 0 97 3590 96 3594 100 3594 319 2455 102
Manitoba 1226 131 984 0 0 3 3 9 984 4 95 4 4 0 0 0 95 2 116 3 95 28 116 1
Saskatchewan 1633 127 650 0 0 26 26 5 617 2 265 9 7 5 3 0 264 5 262 1 264 49 264 11
Alberta 3285 315 2131 1 5 14 20 42 2056 5 697 4 4 10 0 0 697 10 697 0 697 77 697 25
Prairies 6144 573 3765 1 5 43 49 56 3657 11 1057 17 15 15 3 0 1056 17 1075 4 1056 154 1077 37
British Columbia 2794 389 2005 1 1 0 6 5 2003 5 400 12 3 8 2 0 400 29 400 19 379 77 379 13
Yukon 36 1 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 18 0 18 0 0 0 0 0 18 3 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 18 5 N.C. N.C.
Nunavut 136 3 101 0 0 0 0 12 101 8 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 4 133 0 0 0 0 12 133 11 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 18 5 N.C. N.C.
Canada 32053 3083 17881 7 7 98 113 263 15599 109 6187 38 22 73 15 97 6207 189 6211 160 5389 591 5051 179

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 May 13, 2023 (surveillance weeks 2022-35 to 2023-19)
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 20894 3743 12031 1 246 673 920 8 12031 578 12031 56 30 366 72 0 12031 232 12031 374 12031 1012 12031 453
Prince Edward Island 32874 7251 4004 1 119 248 368 3 4004 384 1141 19 27 78 7 0 1141 72 1141 37 1141 338 1141 35
Nova Scotia 128120 25175 40952 0 4 3642 3646 12 40942 2405 1294 7 16 31 4 0 1300 50 1290 44 1300 241 1300 57
New Brunswick 105716 15583 47713 20 133 4433 4586 26 39701 2042 3513 21 30 152 8 0 3513 253 3513 179 3513 648 3458 221
Atlantic 287604 51752 104700 22 502 8996 9520 49 96678 5409 17979 103 103 627 91 0 17985 607 17975 634 17985 2239 17930 766
Région Nord-Est 90474 11072 53081 0 4 3827 3831 65 16129 1374 1547 27 5 87 0 0 1548 129 1539 95 N.C. N.C. 1548 110
Québec-Chaudière-Appalaches 188027 17920 25519 0 0 2889 2889 143 24832 1921 7221 23 5 91 7 0 7719 628 7221 340 N.C. N.C. 7221 337
Centre-du-Québec 152941 20981 15724 0 0 1781 1781 94 13977 986 1019 13 1 50 10 0 1019 118 1019 74 N.C. N.C. 1019 71
Montréal-Laval 208342 25804 100291 0 9 6241 6250 1404 54269 2726 21995 136 21 484 26 0 22004 986 22144 786 N.C. N.C. 21680 769
Ouest du Québec 115103 14784 23486 0 7 2194 2201 159 21191 1317 1047 21 0 66 2 0 1046 191 1047 59 N.C. N.C. 1048 63
Montérégie 146134 16579 29482 0 0 1797 1797 219 26671 1193 146 0 0 2 0 0 146 4 146 6 N.C. N.C. 146 3
Province of Québec 901021 107140 247583 0 20 18729 18749 2084 157069 9517 32975 220 32 780 45 0 33482 2056 33116 1360 N.C. N.C. 32662 1353
P.H.O.L. - Ottawa 28841 7237 5603 17 136 66 214 2 5603 355 3944 0 0 0 0 117 3944 17 3944 115 3944 362 3944 200
EORLA 88651 8644 16350 0 0 1411 1411 42 16350 1297 1311 11 3 55 16 0 1311 51 1311 60 1311 292 1311 96
P.H.O.L. - Kingston 30058 4869 3014 5 92 38 135 2 3013 180 2443 0 0 0 0 107 2444 28 2444 76 2443 311 2444 96
UHN / Mount Sinai Hospital 96157 7343 22985 7 44 352 403 53 22985 309 2108 2 2 32 1 0 2075 7 2108 15 2108 70 2108 86
P.H.O.L. - Toronto 51556 10920 28276 124 2415 148 1133 44 28246 1342 24994 0 0 0 0 1002 24998 491 24994 972 24994 2347 24994 1254
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 85083 5994 85084 119 1471 727 2317 298 85085 2210 62366 4 0 16 0 697 62379 635 62652 928 62600 2161 62492 1007
P.H.O.L. - Sault Ste. Marie 1775 337 681 1 52 15 58 0 681 25 607 0 0 0 0 53 607 4 607 30 607 44 607 44
P.H.O.L. - Timmins 9146 863 1022 0 161 6 156 0 1020 98 960 0 0 0 0 54 960 14 960 28 960 84 960 42
St. Joseph's - London 123092 15107 20821 0 0 886 886 67 20821 1016 2189 0 0 0 0 80 2223 74 2223 68 2223 318 1811 105
P.H.O.L. - London 37366 7921 11248 13 585 63 643 22 11247 887 9013 0 0 0 0 438 9014 123 9014 231 9013 882 9014 308
P.H.O.L. - Orillia 570 261 2348 6 261 23 290 9 2348 230 2273 0 0 0 0 129 2274 65 2273 78 2273 329 2273 104
P.H.O.L. - Thunder Bay 8507 1712 1073 0 107 3 110 0 1072 96 946 0 0 0 0 38 946 18 946 27 946 110 947 38
P.H.O.L. - Sudbury 2096 302 791 1 65 14 67 0 791 79 670 0 0 0 0 30 670 8 670 45 670 38 670 25
P.H.O.L. - Hamilton 25898 6865 9346 9 301 92 401 34 9343 554 6871 0 0 0 0 267 6873 143 6871 241 6871 680 6871 282
P.H.O.L. - Peterborough 5267 1018 1482 0 67 11 78 10 1482 115 1186 0 0 0 0 46 1186 18 1186 42 1186 184 1186 44
St. Joseph's - Hamilton 97917 13507 48205 0 0 2733 2733 436 48205 2276 48205 0 0 1021 0 0 48205 660 48205 889 48205 3218 0 0
Sault Area Hospital 12350 2108 8266 1 262 258 521 5 8266 167 2713 35 6 67 4 0 2713 47 2713 100 2713 270 2713 80
Province of Ontario 704330 95008 266595 303 6019 6846 11556 1024 266558 11236 172799 52 11 1191 21 3058 172822 2403 173121 3945 173067 11700 124345 3811
Manitoba 70583 11684 41799 17 202 1795 2014 50 41799 1777 5360 39 34 172 6 0 5350 136 5661 217 5360 798 5661 215
Saskatchewan 165868 13498 41360 2 41 3920 3963 70 33350 2214 13808 112 99 527 47 0 13810 354 13811 656 13811 1451 13806 504
Alberta 233851 33605 129235 999 7299 2852 11150 676 114334 7647 45092 338 109 936 131 0 45077 623 45030 1262 44337 4130 45092 1264
Prairies 470302 58787 212394 1018 7542 8567 17127 796 189483 11638 64260 489 242 1635 184 0 64237 1113 64502 2135 63508 6379 64559 1983
British Columbia 233266 25128 132528 409 4355 304 8914 294 124449 8215 28372 279 196 1082 160 6 28382 848 28382 1118 27486 4258 27483 1090
Yukon 5128 389 907 2 136 0 138 9 905 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 1632 188 1482 2 147 1 150 4 1482 106 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 1482 296 N.C. N.C.
Nunavut 4806 387 2700 4 230 3 237 195 2700 139 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 11566 964 5089 8 513 4 525 208 5087 304 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 1482 296 N.C. N.C.
Canada 2608089 338779 968889 1760 18951 43446 66391 4455 839324 46319 316385 1143 584 5315 501 3064 316908 7027 317096 9192 283528 24872 266979 9003

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 11.76 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 11.73 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 11.17 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 11.42 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 11.58 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 11.28 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 10.83 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 10.90 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 11.36 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 10.07 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 9.80 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 9.62 0.63 12.58 0.00 8.27 0.90 3.26 1.47 0.05 0.00 9.33 2.12 5.72 0.70 2.40 0.24 4.61 2.30 3.16
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 9.78 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 4.73 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 10.97 8.36 7.40 21.71 15.70 19.30 3.96 2.71 0.21 9.09 3.67 5.95 3.04 1.52 0.98 2.63 1.66 2.07 2.58 3.63 0.04 7.46 3.23 4.80 3.54 4.37 0.86 3.71 1.58 2.36
20 2023-05-20 - 9.06 8.13 24.52 16.67 19.75 - 3.29 0.05 8.60 3.90 6.75 - 1.68 0.71 3.35 1.79 2.44 - 4.79 0.14 6.85 2.55 4.99 - 4.53 0.75 3.31 1.87 2.49

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 54993 11.76 5613 17.66 19596 11.17 15744 12.81 9654 8.12 4179 10.91 207 14.49
8 2023-02-25 52530 11.73 4878 18.63 19200 11.20 14836 12.15 9150 8.40 4259 11.86 207 13.53
9 2023-03-04 53621 11.17 5550 16.85 19339 10.82 15219 11.39 9209 8.67 4055 10.09 249 9.64
10 2023-03-11 51381 11.42 4959 18.33 18106 10.52 14995 11.34 8977 9.64 4122 11.28 222 10.81
11 2023-03-18 50808 11.58 4754 17.37 17765 10.26 15074 11.90 9173 10.07 3828 13.01 214 9.35
12 2023-03-25 48713 11.28 4607 16.21 16710 10.15 14209 10.89 9067 10.01 3939 14.78 181 7.73
13 2023-04-01 46587 10.83 4341 16.47 17132 9.38 13065 9.94 8196 10.14 3676 15.86 177 6.78
14 2023-04-08 40775 10.90 3595 15.35 15657 10.40 10310 9.28 7610 9.96 3408 15.76 195 5.64
15 2023-04-15 41855 11.36 3771 15.43 16447 10.52 10477 9.48 7252 10.48 3736 18.31 172 2.33
16 2023-04-22 40216 10.94 3412 13.25 16103 9.69 9788 9.28 7042 11.19 3660 18.63 211 4.27
17 2023-04-29 38117 10.07 2700 13.52 15387 9.25 9083 7.85 7085 9.39 3690 18.02 172 2.91
18 2023-05-06 35563 9.80 2743 14.69 14533 8.48 8229 8.48 6734 9.76 3123 15.63 201 3.48
19 2023-05-13 32053 9.62 2557 15.68 12911 8.30 7457 8.64 6144 9.33 2794 13.92 190 2.11

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 25448 0.57 0.50 2864 0.07 0.03 6409 1.09 0.94 7307 0.23 0.33 5235 0.67 0.44 3545 0.62 0.28 88 0.00 10.23
9 2023-03-04 26132 0.63 0.70 2917 0.31 0.07 6757 1.11 1.42 7347 0.37 0.48 5622 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 25612 0.52 1.16 2824 0.35 0.14 6927 0.90 1.82 6957 0.34 0.86 5381 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 24351 0.64 1.74 2435 0.45 0.21 6887 1.47 3.44 6826 0.38 1.35 4958 0.22 1.11 3126 0.22 0.61 119 0.00 12.61
14 2023-04-08 22975 0.38 1.85 2099 0.10 0.19 6354 0.76 3.12 6082 0.23 1.66 5195 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 22665 0.51 1.85 1928 1.09 0.10 6585 0.80 2.99 5961 0.29 1.41 4719 0.38 1.34 3293 0.21 0.73 179 0.00 27.93
17 2023-04-29 21493 0.47 1.83 1771 0.28 0.17 6155 0.70 2.79 5560 0.11 1.67 4595 0.63 1.87 3292 0.52 0.30 120 0.83 25.00
18 2023-05-06 20581 0.50 1.81 1775 0.17 0.28 6068 0.44 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 17881 0.63 1.47 1679 0.30 0.24 5736 0.66 2.07 4563 0.33 1.47 3765 1.30 1.49 2005 0.30 0.25 133 0.00 9.02

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 22394 4.54 2721 6.43 4066 3.91 7307 2.29 4871 5.69 3341 6.76 88 14.77
9 2023-03-04 22960 3.73 2800 4.39 4224 3.10 7347 2.10 5269 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 22372 2.20 2727 2.57 4216 2.21 6957 1.29 5083 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 21202 1.64 2369 2.41 4251 1.88 6826 0.88 4692 1.26 2945 2.85 119 6.72
14 2023-04-08 20023 1.34 2088 1.92 3817 1.91 6082 0.64 4952 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 19853 1.31 1942 2.57 4094 1.69 5961 0.57 4500 0.73 3177 1.89 179 7.82
17 2023-04-29 18840 1.14 1755 2.05 3925 1.91 5560 0.49 4354 0.62 3126 1.31 120 6.67
18 2023-05-06 18059 0.86 1771 1.92 3859 1.30 5250 0.50 4421 0.45 2609 0.65 149 6.04
19 2023-05-13 15599 0.70 1636 1.28 3607 1.08 4563 0.48 3657 0.30 2003 0.25 133 8.27

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 9016 3.06 421 9.03 788 4.44 5409 1.37 1637 5.44 761 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 7235 4.84 390 7.69 807 3.84 4052 3.38 1352 7.10 634 8.83
19 2023-05-13 6187 3.96 342 4.68 798 4.39 3590 3.31 1057 4.73 400 6.25

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 9027 2.75 421 3.09 799 8.64 5409 1.85 1637 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 7254 3.57 390 6.67 825 6.55 4052 2.59 1353 2.88 634 5.52
19 2023-05-13 6207 3.04 342 2.05 819 4.88 3590 2.67 1056 1.61 400 7.25

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 9015 4.73 421 5.94 791 2.53 5408 4.60 1634 4.83 761 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 7266 3.15 390 1.28 811 2.10 4053 3.95 1378 1.45 634 4.26
19 2023-05-13 6211 2.58 342 2.05 800 3.75 3594 2.78 1075 0.37 400 4.75

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 8214 9.78 421 9.26 - - 5408 8.69 1617 10.33 736 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 5389 10.97 342 10.53 - - 3594 8.88 1056 14.58 379 20.32

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 7540 3.41 421 5.23 788 7.99 3962 2.73 1633 2.76 736 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 5941 3.42 390 4.36 807 1.49 2752 4.18 1377 2.61 615 3.74
19 2023-05-13 5051 3.54 342 3.80 798 1.75 2455 4.15 1077 3.44 379 3.43

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