Respiratory Virus Report, Week 46 - ending November 19, 2022

Download in PDF format
(1.87 MB, 12 pages)

Organization: Public Health Agency of Canada

In this Respiratory Virus Report, the number of detections of coronavirus reflects only seasonal human coronaviruses, not the novel pandemic coronavirus (SARS-CoV-2) that causes COVID-19. For information on COVID-19, see the Coronavirus disease (COVID-19): Outbreak update

Overall Summary

Activity of influenza and respiratory syncytial virus (RSV) remains elevated; among seasonal respiratory viruses, activity of influenza is highest and continues to increase.

  • • Influenza A activity is far above expected levels for this time of year and continues to increase (5,876 detections; 19.2% positive. Influenza A accounts for nearly all influenza detections in Canada.
  • Activity of RSV is stabilizing (1,944 detections; 7.6% positive). RSV activity remains above expected levels for this time of year but is approaching levels typical of this time of year.
  • Activity of most other respiratory viruses is near expected levels for this time of year.
  • 34/35 sentinel laboratories reported surveillance data.

On this page

Abbreviations:
Flu
Influenza
Flu A(H1)pdm09
Influenza A(H1N1)pdm09
Flu A(H3)
Influenza A(H3N2)
Flu A(UnS)
Influenza A(Unsubtyped)
RSV
Respiratory syncytial virus
HPIV
Human parainfluenza virus
HMPV
Human metapneumovirus
ADV
Adenovirus
EV/RV
Enterovirus/Rhinovirus
HCoV
Human coronavirus
Atl
Atlantic Canada
BC
British Columbia
Can
Canada
EORLA
Eastern Ontario Regional Laboratory Association
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
Terr
Territories of Canada
UHN
University Health Network

Respiratory virus detections

Table 1: Respiratory virus detections for the week ending November 19, 2022 (surveillance week 2022-46)
Reporting Laboratory 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 314 0 7 2 9 0 314 13 314 0 1 2 2 0 314 11 314 20 314 44 314 3
Prince Edward Island 87 0 24 1 25 0 87 1 85 2 5 9 0 0 85 3 85 1 85 15 85 2
Nova Scotia 1550 0 0 239 239 0 1550 124 36 1 2 0 0 0 36 1 36 0 36 8 36 0
New Brunswick 1482 0 13 213 226 0 587 35 140 1 2 7 0 0 140 10 140 0 140 39 140 10
Atlantic 3433 0 44 455 499 0 2538 173 575 4 10 18 2 0 575 25 575 21 575 106 575 15
Région Nord-Est 1039 0 0 24 24 1 326 67 24 0 0 3 0 0 24 0 24 1 N.C. N.C. 24 3
Québec-Chaudière-Appalaches 672 0 0 51 51 0 674 153 251 1 0 2 0 0 263 15 251 11 N.C. N.C. 251 19
Centre-du-Québec 606 0 0 76 76 0 588 90 23 0 0 0 0 0 23 1 23 2 N.C. N.C. 23 2
Montréal-Laval 3075 0 1 447 448 1 1622 159 866 6 2 14 1 0 868 31 872 64 N.C. N.C. 818 15
Ouest du Québec 584 0 2 140 142 0 496 74 40 1 0 5 0 0 40 10 40 0 N.C. N.C. 40 3
Montérégie 446 0 0 117 117 1 446 63 8 0 0 0 0 0 8 0 8 0 N.C. N.C. 8 0
Province of Québec 6422 0 3 855 858 3 4152 606 1212 8 2 24 1 0 1226 57 1218 78 N.C. N.C. 1164 42
P.H.O.L. - Ottawa 118 0 8 1 9 0 118 6 118 0 0 0 0 6 118 0 118 0 118 20 118 2
EORLA 604 0 0 151 151 0 604 83 48 0 0 1 2 0 48 2 48 1 48 6 48 5
P.H.O.L. - Kingston 109 0 14 2 16 0 109 4 83 0 0 0 0 3 83 1 83 0 83 13 83 4
UHN / Mount Sinai Hospital 696 0 5 42 47 0 696 14 27 0 0 0 0 0 27 0 27 0 27 0 27 2
P.H.O.L. - Toronto 1140 3 294 14 141 0 1138 49 1013 0 0 0 0 49 1013 17 1013 2 1013 75 1013 32
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.
Shared Hospital Laboratory 2448 0 151 87 238 0 2448 156 2080 0 0 0 0 28 2080 18 2089 2 2089 37 2089 36
P.H.O.L. - Sault Ste. Marie 29 0 3 3 6 0 29 0 24 0 0 0 0 1 24 0 24 0 24 0 24 1
P.H.O.L. - Timmins 47 0 10 2 11 0 46 1 46 0 0 0 0 6 46 1 46 0 46 5 46 1
St. Joseph's - London 686 0 0 81 81 3 686 71 48 0 0 0 0 4 48 4 48 0 48 8 57 3
P.H.O.L. - London 344 1 69 5 75 1 344 31 327 0 0 0 0 28 327 4 327 1 327 16 327 11
P.H.O.L. - Orillia 109 2 27 2 31 0 109 14 109 0 0 0 0 2 109 1 109 0 109 10 109 9
P.H.O.L. - Thunder Bay 96 0 22 2 24 0 96 4 67 0 0 0 0 0 67 2 67 0 67 3 67 2
P.H.O.L. - Sudbury 38 0 0 3 3 0 38 0 27 0 0 0 0 0 27 0 27 0 27 2 27 0
P.H.O.L. - Hamilton 298 0 55 6 61 0 298 44 245 0 0 0 0 9 245 5 245 1 245 9 245 14
P.H.O.L. - Peterborough 44 0 8 0 8 0 44 3 44 0 0 0 0 0 44 0 44 0 44 6 44 7
St. Joseph's - Hamilton 1531 0 0 308 308 2 1531 163 1531 0 0 47 0 0 1531 13 1531 5 1531 79 0 0
Sault Area Hospital 391 0 21 19 40 0 391 3 106 7 0 3 0 0 106 3 106 4 106 6 106 2
Province of Ontario 8728 6 687 728 1250 6 8725 646 5943 7 0 51 2 136 5943 71 5952 16 5952 295 4430 131
Manitoba 1122 4 30 141 175 0 1122 62 186 1 0 17 0 0 186 6 210 8 186 26 210 6
Saskatchewan 1852 0 0 634 634 1 1558 29 775 1 4 42 0 0 775 16 775 44 775 52 781 26
Alberta 4210 42 966 345 1353 3 3276 187 1754 7 6 28 2 0 1753 15 1751 21 1735 92 1754 104
Prairies 7184 46 996 1120 2162 4 5956 278 2715 9 10 87 2 0 2714 37 2736 73 2696 170 2745 136
British Columbia 4626 21 466 0 1089 2 3926 237 832 18 12 33 7 0 832 21 832 15 799 119 799 19
Yukon 19 0 2 0 2 0 19 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 51 0 4 0 4 0 51 4 0 0 0 0 0 0 0 0 0 0 51 7 0 0
Nunavut 101 0 11 1 12 0 101 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.
Territories 171 0 17 1 18 0 171 4 0 0 0 0 0 0 0 0 0 0 51 7 0 0
CANADA 30564 73 2213 3159 5876 15 25468 1944 11277 46 34 213 14 136 11290 211 11313 203 10073 697 9713 343

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.

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 November 19, 2022 (surveillance weeks 2022-35 to 2022-46)
Reporting Laboratory 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 2404 0 14 4 18 0 2404 97 2404 2 9 16 5 0 2404 46 2404 82 2404 337 2404 6
Prince Edward Island 594 0 47 3 50 0 594 9 592 10 18 39 2 0 592 38 592 9 592 254 592 5
Nova Scotia 5346 0 3 398 401 1 5345 381 555 4 6 9 1 0 555 22 555 0 555 138 555 4
New Brunswick 6175 0 25 428 453 2 3727 80 697 1 11 40 4 0 697 58 697 1 697 213 642 19
Atlantic 14519 0 89 833 922 3 12070 567 4248 17 44 104 12 0 4248 164 4248 92 4248 942 4193 34
Région Nord-Est 10798 0 0 43 43 3 2208 196 296 3 2 19 0 0 296 12 296 9 N.C. N.C. 296 6
Québec-Chaudière-Appalaches 4170 0 0 71 71 1 4182 701 1919 17 4 22 0 0 2070 122 1919 97 N.C. N.C. 1919 46
Centre-du-Québec 3312 0 0 132 132 1 3254 420 309 12 0 14 0 0 309 19 309 37 N.C. N.C. 309 3
Montréal-Laval 16487 0 5 844 849 8 12834 1334 6866 87 12 117 5 0 6868 225 6941 411 N.C. N.C. 6663 65
Ouest du Québec 3119 0 3 219 222 1 2677 414 495 16 0 38 0 0 495 83 495 22 N.C. N.C. 495 16
Montérégie 4561 0 0 222 222 4 4495 479 49 0 0 1 0 0 49 0 49 0 N.C. N.C. 49 0
Province of Québec 42447 0 8 1531 1539 18 29650 3544 9934 135 18 211 5 0 10087 461 10009 576 N.C. N.C. 9731 136
P.H.O.L. - Ottawa 833 0 23 1 24 0 833 18 833 0 0 0 0 22 833 1 833 10 833 84 833 8
EORLA 4063 0 0 296 296 2 4063 452 488 6 3 13 6 0 488 19 488 13 488 152 488 16
P.H.O.L. - Kingston 723 0 34 4 38 0 723 40 689 0 0 0 0 28 689 15 689 6 689 111 689 13
UHN / Mount Sinai Hospital 6081 0 10 143 153 7 6081 46 258 0 0 1 0 0 225 1 258 0 258 10 258 18
P.H.O.L. - Toronto 5899 27 888 18 340 0 5883 130 5752 0 0 0 0 272 5754 86 5751 50 5752 632 5751 103
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
Shared Hospital Laboratory 32485 12 696 332 1040 2 32486 793 11054 4 0 16 0 168 11067 76 11089 23 11060 371 10936 130
P.H.O.L. - Sault Ste. Marie 109 0 4 3 7 0 109 0 104 0 0 0 0 1 104 0 104 0 104 8 104 1
P.H.O.L. - Timmins 213 0 24 2 25 0 212 1 212 0 0 0 0 20 212 2 212 6 212 34 212 10
St. Joseph's - London 2334 0 0 177 177 3 2334 219 628 0 0 0 0 20 662 19 662 0 662 134 251 15
P.H.O.L. - London 2056 5 238 11 247 1 2056 137 2039 0 0 0 0 120 2039 33 2039 6 2039 230 2039 36
P.H.O.L. - Orillia 805 4 165 4 173 0 805 50 805 0 0 0 0 54 805 14 805 8 805 140 805 23
P.H.O.L. - Thunder Bay 291 0 68 2 70 0 290 4 261 0 0 0 0 1 261 5 261 0 261 35 261 4
P.H.O.L. - Sudbury 127 0 1 3 4 0 127 2 116 0 0 0 0 3 116 2 116 1 116 13 116 5
P.H.O.L. - Hamilton 1552 0 140 9 149 3 1549 146 1465 0 0 0 0 58 1465 19 1465 10 1465 166 1465 30
P.H.O.L. - Peterborough 384 0 37 0 37 0 384 21 384 0 0 0 0 16 384 5 384 2 384 83 384 10
St. Joseph's - Hamilton 11999 0 0 1209 1209 6 11999 717 11999 0 0 373 0 0 11999 94 11999 41 11999 1200 0 0
Sault Area Hospital 2728 0 60 21 81 0 2728 14 926 14 0 7 0 0 926 22 926 36 926 148 926 6
Province of Ontario 72682 48 2388 2235 4070 24 72662 2790 38013 24 3 410 6 783 38029 413 38081 212 38053 3551 25518 428
Manitoba 7888 9 54 214 277 0 7888 200 1820 1 2 58 4 0 1820 64 2033 79 1820 428 2033 16
Saskatchewan 9148 0 0 1395 1395 2 7767 92 3559 9 22 170 8 0 3561 98 3563 169 3561 511 3564 87
Alberta 30629 140 2974 645 3759 12 26095 642 13045 77 42 241 17 0 13043 163 13028 94 12791 1786 13045 420
Prairies 47665 149 3028 2254 5431 14 41750 934 18424 87 66 469 29 0 18424 325 18624 342 18172 2725 18642 523
British Columbia 32959 114 1221 12 2235 12 30442 717 7591 81 92 264 37 6 7591 151 7591 128 7366 1740 7366 53
Yukon 94 0 2 0 2 0 91 1 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C.
Northwest Territories 499 0 7 0 7 0 499 22 0 0 0 0 0 0 0 0 0 0 499 177 0 0
Nunavut 1020 3 173 2 178 0 1020 21 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 1613 3 182 2 187 0 1610 44 0 0 0 0 0 0 0 0 0 0 499 177 0 0
CANADA 211885 314 6916 6867 14384 71 188184 8596 78210 344 223 1458 89 789 78379 1514 78553 1350 68338 9135 65450 1174

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.

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 respiratory 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: 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

a Human coronavirus excludes human coronaviruses SARS-CoV, MERS-CoV and SARS-CoV-2; Includes seasonal human coronaviruses HCoV-229E, HCoV-OC43, HCoV-NL63, HCoV-HKU1.

Figure 1: Positive respiratory 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 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 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 EV/RV% 2021-2022 EV/RV% 2020-2021 EV/RV% Max EV/RV% Base Min EV/RV% Base Av EV/RV% Base 2022-2023 HCoV% 2021-2022 HCoV% 2020-2021 HCoV% Max HCoV% Base Min HCoV% Base Av HCoV% Base
35 2022-09-03 0.17 0.04 0.00 1.60 0.11 0.68 0.02 0.00 0.02 0.28 0.00 0.13 1.13 4.43 0.02 1.34 0.38 0.60 2.83 5.99 0.08 3.16 1.15 2.42 2.30 1.18 0.27 1.74 0.99 1.43 1.83 0.23 0.17 2.04 0.10 0.77 15.54 21.96 9.07 27.19 22.44 24.78 0.54 1.05 0.06 0.76 0.18 0.45
36 2022-09-10 0.14 0.01 0.00 2.11 0.23 0.98 0.04 0.00 0.00 0.55 0.00 0.15 1.13 6.61 0.04 1.09 0.22 0.57 3.26 4.93 0.20 3.31 1.35 2.32 2.18 1.15 0.40 2.85 1.42 1.87 1.83 0.24 0.06 0.84 0.10 0.48 16.16 18.59 8.13 30.69 23.30 26.31 0.39 0.62 0.00 0.38 0.12 0.22
37 2022-09-17 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 3.07 5.97 0.13 3.26 1.65 2.40 2.12 0.81 0.35 2.44 1.38 1.86 1.38 0.17 0.05 1.61 0.00 0.51 21.87 27.46 8.07 33.58 27.74 31.68 0.28 0.44 0.05 0.56 0.00 0.26
38 2022-09-24 0.49 0.00 0.02 2.15 0.43 1.16 0.02 0.00 0.00 0.21 0.00 0.14 1.44 7.16 0.10 1.24 0.37 0.64 2.41 4.73 0.07 2.87 1.92 2.33 1.57 0.82 0.58 2.04 1.11 1.63 1.61 0.37 0.02 1.43 0.06 0.47 23.42 33.19 15.67 39.57 32.80 35.33 0.33 0.67 0.00 1.36 0.06 0.43
39 2022-10-01 0.70 0.01 0.00 2.65 0.57 1.53 0.03 0.00 0.00 0.29 0.09 0.18 2.19 8.48 0.05 1.29 0.41 0.68 3.13 8.12 0.02 3.01 1.70 2.24 2.21 1.14 0.19 2.27 1.04 1.66 1.45 0.17 0.04 0.72 0.05 0.28 22.79 30.01 24.12 40.59 34.87 37.68 0.60 0.62 0.05 0.66 0.07 0.45
40 2022-10-08 1.00 0.00 0.00 2.17 1.01 1.58 0.03 0.02 0.00 0.20 0.05 0.11 2.48 8.53 0.07 1.39 0.34 0.67 3.72 8.19 0.02 3.28 1.90 2.43 1.79 1.31 0.44 2.25 1.39 1.82 1.42 0.16 0.00 0.92 0.05 0.34 19.26 26.26 16.62 41.29 33.00 35.43 0.95 0.57 0.09 1.08 0.22 0.58
41 2022-10-15 1.47 0.03 0.01 2.66 1.05 1.57 0.01 0.03 0.00 0.36 0.03 0.16 3.57 9.54 0.10 1.74 0.58 0.98 3.56 10.46 0.06 3.70 1.94 2.74 2.03 1.37 0.37 1.91 1.28 1.70 1.64 0.20 0.19 0.95 0.04 0.46 16.67 22.91 15.48 33.62 26.94 29.81 0.99 1.69 0.02 0.70 0.00 0.33
42 2022-10-22 2.45 0.03 0.00 2.96 0.77 1.92 0.05 0.02 0.00 0.45 0.05 0.25 4.66 8.18 0.07 2.11 0.63 1.14 4.23 10.01 0.06 3.89 2.64 3.20 1.63 2.54 0.47 2.38 1.47 1.86 1.54 0.15 0.06 0.89 0.15 0.38 12.91 22.16 13.60 32.62 24.54 27.82 1.18 1.07 0.00 1.18 0.20 0.49
43 2022-10-29 5.62 0.03 0.01 5.23 0.68 2.60 0.03 0.02 0.00 0.55 0.06 0.23 6.69 8.11 0.07 2.16 0.55 1.32 4.42 9.38 0.07 3.98 3.18 3.56 1.80 1.15 0.37 2.42 1.63 1.96 1.70 0.36 0.02 1.64 0.12 0.57 11.07 19.64 13.14 28.73 21.67 24.95 1.87 1.05 0.00 2.35 0.27 0.75
44 2022-11-05 10.85 0.10 0.04 8.42 1.08 3.39 0.03 0.10 0.03 0.71 0.12 0.31 7.71 7.82 0.05 3.35 0.83 1.92 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 10.23 21.45 9.23 23.82 16.75 21.34 2.54 2.21 0.00 2.59 0.21 0.88
45 2022-11-12 15.99 0.07 0.02 9.83 1.18 4.19 0.04 0.06 0.02 0.97 0.22 0.44 7.58 7.03 0.04 4.43 1.29 2.59 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 7.77 22.39 9.70 23.08 15.17 20.56 3.01 2.57 0.03 2.74 0.52 0.96
46 2022-11-19 19.23 0.10 0.03 13.95 1.42 5.47 0.05 0.06 0.01 1.49 0.09 0.58 7.63 7.18 0.06 6.33 1.38 3.29 3.93 8.29 0.04 5.72 1.62 4.19 1.87 2.51 0.30 2.90 1.99 2.53 1.79 0.99 0.04 1.43 0.18 0.79 6.92 21.37 9.02 22.77 15.28 19.27 3.53 2.99 0.03 3.32 0.46 1.25

Number of positive respiratory virus tests

Figure 2: Number of positive respiratory virus tests reported by participating laboratories in Canada by surveillance week
Figure 2
Figure 2: Number of positive respiratory virus tests reported by participating laboratories in Canada by surveillance week
Week ParaInfluenza Adenovirus Human metapneumovirus Enterovirus/Rhinovirus Coronavirus Respiratory syncytial virus Influenza
35 96 79 63 436 15 130 25
36 111 75 63 448 11 128 23
37 120 83 54 715 9 128 34
38 109 71 73 885 12 186 72
39 151 107 70 932 24 286 106
40 185 89 71 848 38 325 147
41 211 121 98 849 48 504 234
42 303 117 111 806 70 717 431
43 369 150 142 820 132 1,071 1,020
44 383 187 166 846 197 1,444 2,311
45 414 211 219 740 273 1,727 4,156
46 443 211 203 697 343 1,944 5,891

Positive influenza (Flu) tests

Figure 3: Positive influenza (Flu) tests (%) in Canada by region by surveillance week
Figure 3
Figure 3: 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 12651 0.17 0.02 932 0.11 0.11 2404 0.17 0.04 4621 0.11 0.00 2573 0.31 0.04 2006 0.20 0.00 115 0.00 0.00
36 2022-09-10 12500 0.14 0.04 906 0.00 0.00 2520 0.12 0.00 4367 0.16 0.02 2566 0.16 0.08 2055 0.19 0.10 86 0.00 0.00
37 2022-09-17 13368 0.24 0.01 854 0.12 0.00 2618 0.19 0.04 4729 0.32 0.02 2798 0.18 0.00 2247 0.22 0.00 122 0.82 0.00
38 2022-09-24 14059 0.49 0.02 788 0.13 0.00 2714 0.22 0.04 5153 0.39 0.00 3044 0.43 0.03 2226 1.21 0.04 134 1.49 0.00
39 2022-10-01 14373 0.70 0.03 688 0.29 0.15 2873 0.21 0.10 5156 0.72 0.02 3132 0.64 0.00 2411 1.33 0.00 113 3.54 0.00
40 2022-10-08 14355 1.00 0.03 818 0.24 0.00 2339 0.21 0.00 5546 1.05 0.05 3081 0.88 0.03 2430 1.85 0.00 141 4.26 0.00
41 2022-10-15 15866 1.47 0.01 776 1.68 0.00 3275 0.49 0.00 5630 1.92 0.00 3519 1.02 0.03 2540 1.85 0.00 126 10.32 0.00
42 2022-10-22 17229 2.45 0.05 1001 2.60 0.00 3608 0.86 0.03 5930 3.25 0.08 3804 2.18 0.03 2774 2.45 0.07 112 18.75 0.00
43 2022-10-29 18050 5.62 0.03 969 3.72 0.00 3821 1.41 0.08 5852 8.30 0.02 4222 7.20 0.00 3026 3.34 0.07 160 20.63 0.00
44 2022-11-05 21232 10.85 0.03 1209 8.02 0.00 4458 3.45 0.02 7006 11.28 0.04 5278 18.09 0.02 3111 8.07 0.06 170 33.53 0.00
45 2022-11-12 25928 15.99 0.04 2145 11.38 0.05 5395 7.36 0.07 8254 13.28 0.04 6464 28.06 0.03 3507 16.03 0.03 163 19.63 0.00
46 2022-11-19 30564 19.23 0.05 3433 14.54 0.00 6422 13.36 0.05 8728 14.32 0.07 7184 30.09 0.06 4626 23.54 0.04 171 10.53 0.00

Positive respiratory syncytial virus (RSV) tests

Figure 4: Positive respiratory syncytial virus (RSV) tests (%) in Canada by region by surveillance week
Figure 4
Figure 4: 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 11467 1.13 832 1.44 1737 3.51 4621 0.50 2367 0.68 1795 0.50 115 7.83
36 2022-09-10 11305 1.13 785 0.64 1737 2.71 4367 1.01 2415 0.54 1915 0.73 86 5.81
37 2022-09-17 12160 1.05 721 0.97 1851 3.51 4729 0.61 2610 0.61 2127 0.38 122 2.46
38 2022-09-24 12873 1.44 707 1.13 1908 5.56 5153 1.03 2821 0.35 2150 0.33 134 1.49
39 2022-10-01 13059 2.19 556 3.06 2029 7.69 5155 1.47 2894 0.73 2312 0.65 113 0.88
40 2022-10-08 13116 2.48 677 2.95 1727 8.92 5545 1.97 2707 0.63 2319 0.95 141 2.13
41 2022-10-15 14114 3.57 695 3.45 2330 11.12 5630 2.52 3049 1.38 2284 1.53 126 1.59
42 2022-10-22 15388 4.66 799 3.38 2644 13.09 5930 3.74 3352 2.21 2551 1.72 112 3.57
43 2022-10-29 16002 6.69 929 4.20 2751 17.52 5849 6.24 3634 2.67 2680 3.10 159 3.14
44 2022-11-05 18740 7.71 964 6.64 3126 20.15 7006 7.09 4483 3.37 2993 3.31 168 1.79
45 2022-11-12 22782 7.58 1867 9.16 3658 17.28 8242 7.01 5462 3.64 3390 4.25 163 1.84
46 2022-11-19 25468 7.63 2538 6.82 4152 14.60 8725 7.40 5956 4.67 3926 6.04 171 2.34

Positive human parainfluenza virus (HPIV) tests

Figure 5: Positive human parainfluenza virus (HPIV) tests (%) in Canada by region by surveillance week
Figure 5
Figure 5: 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 3393 2.83 294 0.34 619 2.75 1111 3.33 967 2.69 402 3.73
36 2022-09-10 3410 3.26 280 5.36 646 3.87 1037 3.09 1025 2.44 422 3.32
37 2022-09-17 3905 3.07 301 5.65 661 3.33 1300 3.54 1112 2.07 530 2.26
38 2022-09-24 4521 2.41 334 1.80 717 2.65 1649 2.61 1274 1.73 547 3.47
39 2022-10-01 4818 3.13 286 1.75 728 4.81 1939 3.71 1327 1.81 538 2.79
40 2022-10-08 4972 3.72 298 2.35 578 6.40 2143 2.94 1386 3.68 567 4.76
41 2022-10-15 5931 3.56 265 5.28 851 4.70 2893 3.11 1323 3.40 599 3.67
42 2022-10-22 7155 4.23 354 3.39 904 4.09 3770 3.58 1420 4.72 707 7.36
43 2022-10-29 8341 4.42 441 3.40 944 4.45 4545 3.52 1571 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 10621 3.90 458 5.02 1100 2.82 5832 3.24 2447 4.29 783 8.43
46 2022-11-19 11277 3.93 575 5.91 1212 2.89 5943 3.30 2715 3.98 831 8.42

Positive adenovirus (ADV) tests

Figure 6: Positive adenovirus (ADV) tests (%) in Canada by region by surveillance week
Figure 6
Figure 6: 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 3432 2.30 294 6.12 632 2.53 1139 0.79 965 2.69 402 2.49
36 2022-09-10 3434 2.18 280 3.57 659 3.03 1045 1.05 1028 2.43 422 2.13
37 2022-09-17 3923 2.12 301 4.65 679 3.09 1301 1.46 1111 1.35 530 2.64
38 2022-09-24 4536 1.57 334 1.20 731 3.42 1649 0.97 1275 1.41 547 1.46
39 2022-10-01 4834 2.21 286 2.80 742 4.18 1941 1.34 1327 2.11 538 2.60
40 2022-10-08 4983 1.79 298 4.03 583 5.66 2149 1.12 1386 1.23 567 0.53
41 2022-10-15 5946 2.03 265 3.77 864 4.63 2895 0.93 1323 2.12 599 2.67
42 2022-10-22 7166 1.63 354 1.98 915 4.04 3770 0.80 1420 1.69 707 2.69
43 2022-10-29 8353 1.80 441 2.04 955 5.76 4546 1.01 1571 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 10603 1.99 458 5.46 1114 6.64 5800 1.03 2447 1.59 783 1.66
46 2022-11-19 11290 1.87 575 4.35 1226 4.65 5943 1.19 2714 1.36 831 2.53

Positive human metapneumovirus (HMPV) tests

Figure 7: Positive human metapneumovirus (HMPV) tests (%) in Canada by region by surveillance week
Figure 7
Figure 7: 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 3452 1.83 294 2.38 619 2.91 1139 0.97 998 1.90 402 1.99
36 2022-09-10 3445 1.83 280 1.79 649 3.39 1045 0.96 1049 1.72 422 1.90
37 2022-09-17 3924 1.38 301 2.66 665 3.31 1300 0.46 1127 0.80 530 1.70
38 2022-09-24 4535 1.61 334 0.90 723 4.98 1646 0.49 1285 1.48 547 1.28
39 2022-10-01 4835 1.45 286 1.75 729 4.53 1941 0.46 1341 1.04 538 1.67
40 2022-10-08 5011 1.42 298 1.01 581 5.34 2151 0.37 1414 1.27 567 1.94
41 2022-10-15 5960 1.64 265 1.89 857 6.07 2895 0.35 1344 1.26 599 2.34
42 2022-10-22 7188 1.54 354 0.85 911 6.70 3776 0.45 1440 1.53 707 1.13
43 2022-10-29 8362 1.70 441 1.81 960 6.35 4545 0.81 1576 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 10649 2.06 458 3.06 1120 7.86 5838 0.57 2449 2.78 783 2.04
46 2022-11-19 11313 1.79 575 3.65 1218 6.40 5952 0.27 2736 2.67 831 1.81

Positive enterovirus/rhinovirus (EV/RV) tests

Figure 8: Positive enterovirus/rhinovirus (EV/RV) tests (%) in Canada by region by surveillance week
Figure 8
Figure 8: 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 2805 15.54 294 30.27 - - 1139 10.18 947 16.79 394 15.48
36 2022-09-10 2773 16.16 280 21.79 - - 1045 10.81 1013 18.76 417 17.99
37 2022-09-17 3269 21.87 301 23.59 - - 1300 20.38 1101 20.62 522 24.33
38 2022-09-24 3779 23.42 334 22.16 - - 1621 21.96 1255 21.59 538 31.78
39 2022-10-01 4089 22.79 286 27.62 - - 1941 19.68 1309 22.23 521 31.67
40 2022-10-08 4403 19.26 298 20.47 - - 2150 15.58 1365 19.85 546 29.67
41 2022-10-15 5094 16.67 265 24.91 - - 2896 11.33 1305 20.15 579 28.67
42 2022-10-22 6243 12.91 354 21.47 - - 3774 7.58 1389 18.14 678 26.40
43 2022-10-29 7408 11.07 441 19.05 - - 4545 7.35 1554 13.96 814 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 9522 7.77 458 19.87 - - 5837 4.99 2411 8.00 759 19.89
46 2022-11-19 10073 6.92 575 18.43 - - 5952 4.96 2696 6.31 798 14.79

Positive human coronavirus (HCoV) tests

Figure 9: Positive human coronavirus (HCoV) tests (%) in Canada by region by surveillance week
Figure 9
Figure 9: 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 2778 0.54 294 0.68 610 0.66 483 0.62 997 0.20 394 1.02
36 2022-09-10 2833 0.39 280 0.71 639 0.16 451 0.22 1046 0.67 417 0.00
37 2022-09-17 3196 0.28 301 0.00 654 0.31 590 0.51 1128 0.35 522 0.00
38 2022-09-24 3648 0.33 334 0.00 705 0.57 785 0.25 1286 0.47 538 0.00
39 2022-10-01 3974 0.60 286 0.35 716 0.84 1110 0.36 1341 0.75 521 0.58
40 2022-10-08 3994 0.95 298 1.01 568 0.35 1168 0.60 1414 1.27 546 1.47
41 2022-10-15 4855 0.99 265 0.38 842 1.07 1822 0.49 1347 2.00 579 0.35
42 2022-10-22 5937 1.18 354 0.00 884 1.02 2582 0.81 1439 2.50 678 0.59
43 2022-10-29 7067 1.87 386 0.78 922 0.65 3364 1.46 1580 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 9080 3.01 458 0.87 1084 2.49 4325 2.80 2453 4.57 759 1.19
46 2022-11-19 9713 3.53 575 2.61 1164 3.61 4430 2.96 2745 4.95 798 2.38
Report a problem or mistake on this page
Please select all that apply:

Thank you for your help!

You will not receive a reply. For enquiries, contact us.

Date modified: