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Respiratory Virus Report, Week 8 - ending February 26, 2022

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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

Detections of seasonal respiratory viruses have dropped sharply since the end of December 2021. In recent weeks, activity of all seasonal respiratory viruses has stabilized and is within or below expected levels for this time of year.

  • Respiratory syncytial virus (201 detections; 2.1% positive) is the most common seasonal respiratory virus detected in Canada, but activity is below expected levels for this time of year.
  • Detections of other respiratory viruses are low.
  • The number of tests performed for each virus is within or below expected levels.
    • Due to the current COVID-19 pandemic, changes in laboratory testing practices for the past week may affect the comparability of data to previous weeks.
  • 30/34 sentinel laboratories reported surveillance data.

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Abbreviations:
Flu
Influenza
A(H1)pdm09
Influenza A(H1N1)pdm09
A(H3)
Influenza A(H3N2)
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 February 26, 2022 (surveillance week 2022-08)
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 129 0 0 0 0 0 129 1 129 0 0 0 0 0 130 0 129 0 129 0 N.C. N.C.
Prince Edward Island 50 0 0 0 0 0 50 8 50 0 0 0 0 0 50 2 50 0 50 3 50 0
Nova Scotia 555 0 0 0 0 0 555 2 50 0 0 0 0 0 50 0 50 1 50 1 50 1
New Brunswick 443 0 0 0 0 0 284 5 24 0 0 0 0 0 24 3 24 1 24 1 24 0
Atlantic 1177 0 0 0 0 0 1018 16 253 0 0 0 0 0 254 5 253 2 253 5 124 1
Région Nord-Est 401 1 0 0 1 1 106 0 1 0 0 0 0 0 1 0 1 0 N.C. N.C. 1 0
Québec-Chaudière-Appalaches 62 0 0 0 0 0 65 0 21 0 0 0 0 0 51 6 51 0 N.C. N.C. 40 0
Centre-du-Québec 77 0 0 0 0 0 76 0 10 0 1 0 0 0 10 2 10 0 N.C. N.C. 10 0
Montréal-Laval   268 0 0 2 2 0 269 1 136 0 0 0 0 0 136 9 136 7 N.C. N.C. 136 4
Ouest du Québec 39 0 0 0 0 0 39 1 7 0 0 1 0 0 7 0 7 0 N.C. N.C. 7 0
Montérégie 28 0 0 0 0 0 26 0 0 0 0 0 0 0 0 0 0 0 N.C. N.C. 0 0
Province of Québec 875 1 0 2 3 1 581 2 175 0 1 1 0 0 205 17 205 7 N.C. N.C. 194 4
P.H.O.L. - Ottawa 19 0 0 0 0 0 19 0 19 0 0 0 0 1 19 1 19 0 19 0 19 0
EORLA 113 0 0 0 0 0 113 0 21 0 0 0 0 0 21 1 21 0 21 4 21 0
P.H.O.L. - Kingston 21 0 0 0 0 0 21 1 21 0 0 0 0 0 21 0 19 0 21 0 19 4
UHN / Mount Sinai Hospital 397 0 0 1 1 0 397 1 16 0 0 0 0 0 16 0 16 0 16 0 16 0
P.H.O.L. - Toronto 140 0 1 0 1 0 138 1 138 0 0 0 0 0 139 2 138 1 138 4 138 3
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.
Sunnybrook & Women's College HSC 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.
P.H.O.L. - Sault Ste. Marie 5 0 0 0 0 0 5 0 5 0 0 0 0 0 5 0 5 0 5 0 5 0
P.H.O.L. - Timmins 8 0 0 0 0 0 8 0 8 0 0 0 0 0 8 0 8 0 8 0 8 2
St. Joseph's - London   460 0 0 2 2 0 460 5 460 0 0 0 0 1 460 3 460 0 460 24 0 0
P.H.O.L. - London 39 0 0 0 0 0 39 0 39 0 0 0 0 0 39 0 39 0 39 1 39 2
P.H.O.L. - Orillia 17 0 0 0 0 0 17 0 17 0 0 0 0 0 17 0 16 0 17 5 16 2
P.H.O.L. - Thunder Bay 17 0 0 0 0 0 17 1 17 0 0 0 0 0 17 0 17 0 17 0 17 3
P.H.O.L. - Sudbury 1 0 0 0 0 0 1 0 1 0 0 0 0 0 1 0 1 0 1 0 1 0
P.H.O.L. - Hamilton 25 0 0 0 0 0 25 0 25 0 0 0 0 0 25 0 25 0 25 1 25 0
P.H.O.L. - Peterborough 7 0 0 0 0 0 7 0 7 0 0 0 0 0 7 0 7 0 7 0 7 0
St. Joseph's - Hamilton 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.
Province of Ontario 1269 0 1 3 4 0 1267 9 794 0 0 0 0 2 795 7 791 1 794 39 331 16
Province of Manitoba 752 0 0 0 0 0 752 26 72 0 0 0 0 0 72 0 80 0 72 0 80 2
Province of Saskatchewan 369 0 0 0 0 0 369 19 94 0 0 2 0 0 94 2 94 2 94 6 94 3
Province of Alberta 1251 0 0 0 0 0 530 57 530 0 2 1 1 0 530 9 530 2 530 37 530 9
Prairies 2372 0 0 0 0 0 1651 102 696 0 2 3 1 0 696 11 704 4 696 43 704 14
British Columbia 4443 0 0 0 0 1 4393 69 511 0 0 4 3 0 511 10 511 1 503 52 503 29
Yukon 65 0 0 0 0 0 65 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.
Northwest Territories 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.
Nunavut 543 0 0 0 0 0 542 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 611 0 0 0 0 0 609 3 2 0 0 0 0 0 2 0 2 0 2 0 2 0
CANADA 10747 1 1 5 7 2 9519 201 2431 0 3 8 4 2 2463 50 2466 15 2248 139 1858 64

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.

The reporting laboratory previously listed as CHEO - Ottawa is now listed as EORLA to better reflect data submitted by this provider.

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: BC Children's and Women's Hospital, Children's and Women's Hospital Laboratory, Fraser Health Medical Microbiology Laboratory, Island Health, Providence Health Care, Powell River Hospital, St. Paul's Hospital, Vancouver General Hospital, Victoria General Hospital, BCCDC Public Health Laboratory, Interior Health Authority sites and Northern Health Authority sites.

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

For British Columbia, only data from subtyped influenza A specimens are included in the weekly number of influenza detections. The sum of A(H1N1)pdm09, A(H3), and A(UnS) positive results may not equal the sum of total Flu A positive results.

Table 2: Cumulative respiratory virus detections from August 29, 2021 to February 26, 2022 (surveillance weeks 2021-35 to 2022-08)
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 7607 0 0 0 0 0 7606 83 7609 1 3 116 0 154 7615 24 7603 33 7610 1728 N.C. N.C.
Prince Edward Island 1798 0 0 0 0 0 1798 137 1753 0 0 152 0 0 1798 49 1798 4 1798 438 1798 100
Nova Scotia 12781 0 1 12 13 4 12780 304 1281 0 2 38 7 0 1295 11 1295 4 1295 94 1295 30
New Brunswick 10881 0 0 6 6 0 6928 262 2540 0 0 23 1 0 2533 12 2540 6 2540 36 2449 5
Atlantic 33067 0 1 18 19 4 29112 786 13183 1 5 329 8 154 13241 96 13236 47 13243 2296 5542 135
Région Nord-Est 14363 1 0 2 3 3 6762 1431 590 0 0 6 1 0 685 14 91 1 N.C. N.C. 876 13
Québec-Chaudière-Appalaches 4432 0 0 5 5 4 4996 994 1233 0 3 7 5 0 1186 48 1097 50 N.C. N.C. 997 43
Centre-du-Québec 5311 0 0 3 3 4 5445 1080 465 0 1 19 0 0 465 22 473 16 N.C. N.C. 458 9
Montréal-Laval   16275 0 0 35 35 4 16146 2434 5308 5 2 21 5 0 5307 315 5304 326 N.C. N.C. 5304 67
Ouest du Québec 4016 0 1 7 8 0 3973 929 65 0 0 3 1 0 58 5 54 1 N.C. N.C. 54 1
Montérégie 2515 0 0 2 2 0 2498 386 0 0 0 0 0 0 0 0 0 0 N.C. N.C. 0 0
Province of Québec 46912 1 1 54 56 15 39820 7254 7661 5 6 56 12 0 7701 404 7019 394 N.C. N.C. 7689 133
P.H.O.L. - Ottawa 6395 2 1 0 3 0 6395 1437 6395 0 0 0 0 728 6395 311 6394 38 6395 2205 6394 257
EORLA 4878 0 0 0 0 0 4853 596 646 0 2 19 0 0 646 12 327 3 646 119 304 15
P.H.O.L. - Kingston 1105 0 0 0 0 0 1104 114 1103 0 0 0 0 129 1103 19 1098 2 1103 280 1098 79
UHN / Mount Sinai Hospital 12239 0 0 10 10 2 12239 87 388 0 0 0 0 0 388 0 388 0 388 11 388 2
P.H.O.L. - Toronto   6723 0 14 0 14 0 6704 264 6704 0 0 0 0 263 6707 80 6703 12 6704 858 6704 203
Sick Kids Hospital - Toronto 839 0 0 0 0 0 0 0 839 0 2 68 1 0 839 12 839 1 839 233 839 10
Sunnybrook & Women's College HSC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
P.H.O.L. - Sault Ste. Marie 236 0 1 0 1 0 234 5 234 0 0 0 0 7 234 3 234 1 234 47 234 9
P.H.O.L. - Timmins 304 0 0 0 0 0 304 12 304 0 0 0 0 18 304 1 304 0 304 29 304 24
St. Joseph's - London   10133 0 0 16 16 0 10136 740 8579 0 0 7 0 84 8579 104 8579 9 8533 422 497 2
P.H.O.L. - London 2793 0 6 0 6 0 2786 450 2786 0 0 0 0 152 2786 62 2786 9 2786 400 2786 210
P.H.O.L. - Orillia 669 0 1 0 1 0 669 101 669 0 0 0 0 41 669 22 666 6 669 166 666 48
P.H.O.L. - Thunder Bay 234 0 0 0 0 0 234 18 234 0 0 0 0 21 234 0 234 0 234 49 234 24
P.H.O.L. - Sudbury 251 0 0 0 0 0 251 10 251 0 0 0 0 9 251 1 251 2 251 29 251 5
P.H.O.L. - Hamilton 1307 0 7 0 7 0 1299 68 1299 0 0 0 0 43 1300 9 1299 6 1299 199 1299 74
P.H.O.L. - Peterborough 512 0 0 0 0 0 512 44 511 0 0 0 0 11 511 1 509 0 511 84 509 35
St. Joseph's - Hamilton 15313 0 4 7 11 1 15307 1583 15307 2 0 648 0 0 15307 163 15307 25 15307 1575 0 0
Province of Ontario 63931 2 34 33 69 3 63027 5529 46249 2 4 742 1 1506 46253 800 45918 114 46203 6706 22507 997
Manitoba 43080 1 15 8 24 0 43080 688 1453 1 4 69 0 0 1453 19 2533 6 1453 194 2339 50
Province of Saskatchewan 19811 2 7 14 23 0 19785 349 2981 0 1 192 28 0 2980 51 2980 5 2980 406 2978 189
Province of Alberta 53574 0 9 30 39 2 21316 2215 21316 0 21 652 134 0 21316 191 21316 49 21316 2760 21316 1212
Prairies 116465 3 31 52 86 2 84181 3252 25750 1 26 913 162 0 25749 261 26829 60 25749 3360 26633 1451
British Columbia 138839 3 37 3 167 85 136472 8360 16024 6 7 1047 155 143 16024 288 16020 63 15677 2677 15726 342
Yukon 4707 0 1 0 4 7 4722 281 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 674 0 0 0 0 0 629 18 68 0 0 1 0 0 68 2 68 0 628 93 68 0
Nunavut 13680 0 0 0 0 0 13667 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 19061 0 1 0 4 7 19018 307 85 0 0 1 0 0 85 3 85 0 645 101 82 0
CANADA 418275 9 105 160 401 116 371630 25488 108952 15 48 3088 338 1803 109053 1852 109107 678 101517 15140 78179 3058

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.

The reporting laboratory previously listed as CHEO - Ottawa is now listed as EORLA to better reflect data submitted by this provider.

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: BC Children's and Women's Hospital, Children's and Women's Hospital Laboratory, Fraser Health Medical Microbiology Laboratory, Island Health, Providence Health Care, Powell River Hospital, St. Paul's Hospital, Vancouver General Hospital, Victoria General Hospital, BCCDC Public Health Laboratory, Interior Health Authority sites and Northern Health Authority sites.

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

For British Columbia, only data from subtyped influenza A specimens are included in the weekly number of influenza detections. The sum of A(H1N1)pdm09, A(H3), and A(UnS) positive results may not equal the sum of total Flu A positive results.

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 2021-2022 A% 2020-2021 A% Max A% Base Min A% Base Av A% Base 2021-2022 B% 2020-2021 B% Max B% Base Min B% Base Av B% Base 2021-2022 RSV% 2020-2021 RSV% Max RSV% Base Min RSV% Base Av RSV% Base 2021-2022 HPIV% 2020-2021 HPIV% Max HPIV% Base Min HPIV% Base Av HPIV% Base 2021-2022 ADV% 2020-2021 ADV% Max ADV% Base Min ADV% Base Av ADV% Base 2021-2022 HMPV% 2020-2021 HMPV% Max HMPV% Base Min HMPV% Base Av HMPV% Base 2021-2022 EV/RV% 2020-2021 EV/RV% Max EV/RV% Base Min EV/RV% Base Av EV/RV% Base 2021-2022 HCoV% 2020-2021 HCoV% Max HCoV% Base Min HCoV% Base Av HCoV% Base
35 2021-09-04 0.04 0.00 1.60 0.11 0.68 0.00 0.02 0.28 0.00 0.13 4.99 0.02 1.34 0.38 0.60 5.99 0.08 3.16 1.15 2.42 1.18 0.27 1.74 0.99 1.43 0.23 0.17 2.04 0.10 0.77 21.97 9.07 27.19 22.44 24.78 1.05 0.06 0.76 0.18 0.45
36 2021-09-11 0.01 0.00 2.11 0.23 0.98 0.00 0.00 0.55 0.00 0.15 7.55 0.04 1.09 0.22 0.57 4.92 0.20 3.31 1.35 2.32 1.15 0.40 2.85 1.42 1.87 0.24 0.06 0.84 0.10 0.48 18.62 8.13 30.69 23.30 26.31 0.62 0.00 0.38 0.12 0.22
37 2021-09-18 0.04 0.00 1.59 0.36 0.87 0.00 0.00 0.19 0.04 0.12 8.56 0.02 1.37 0.31 0.64 5.97 0.13 3.26 1.65 2.40 0.81 0.35 2.44 1.38 1.86 0.17 0.05 1.61 0.00 0.51 27.51 8.07 33.58 27.74 31.68 0.44 0.05 0.56 0.00 0.26
38 2021-09-25 0.00 0.02 2.15 0.43 1.16 0.00 0.00 0.21 0.00 0.14 8.07 0.10 1.24 0.37 0.64 4.73 0.07 2.87 1.92 2.33 0.82 0.58 2.04 1.11 1.63 0.37 0.02 1.43 0.06 0.47 33.16 15.67 39.57 32.80 35.33 0.67 0.00 1.36 0.06 0.43
39 2021-10-02 0.01 0.00 2.65 0.57 1.53 0.00 0.00 0.29 0.09 0.18 9.36 0.05 1.29 0.41 0.68 8.12 0.02 3.01 1.70 2.24 1.14 0.19 2.27 1.04 1.66 0.17 0.04 0.72 0.05 0.28 30.02 24.12 40.59 34.87 37.68 0.62 0.05 0.66 0.07 0.45
40 2021-10-09 0.00 0.00 2.17 1.01 1.58 0.02 0.00 0.20 0.05 0.11 9.25 0.07 1.39 0.34 0.67 8.19 0.02 3.28 1.90 2.43 1.31 0.44 2.25 1.39 1.82 0.16 0.00 0.92 0.05 0.34 26.24 16.62 41.29 33.00 35.43 0.57 0.09 1.08 0.22 0.58
41 2021-10-16 0.03 0.01 2.66 1.05 1.57 0.03 0.00 0.36 0.03 0.16 10.39 0.10 1.74 0.58 0.98 10.29 0.06 3.70 1.94 2.74 1.39 0.37 1.91 1.28 1.70 0.20 0.19 0.95 0.04 0.46 22.63 15.48 33.62 26.94 29.81 1.72 0.02 0.70 0.00 0.33
42 2021-10-23 0.03 0.00 2.96 0.77 1.92 0.02 0.00 0.45 0.05 0.25 8.85 0.07 2.11 0.63 1.14 10.01 0.06 3.89 2.64 3.20 2.54 0.47 2.38 1.47 1.86 0.15 0.06 0.89 0.15 0.38 22.17 13.60 32.62 24.54 27.82 1.07 0.00 1.18 0.20 0.49
43 2021-10-30 0.03 0.01 5.23 0.68 2.60 0.02 0.00 0.55 0.06 0.23 8.85 0.07 2.16 0.55 1.32 9.58 0.07 3.98 3.18 3.56 1.21 0.37 2.42 1.63 1.96 0.39 0.02 1.64 0.12 0.57 20.02 13.14 28.73 21.67 24.95 1.05 0.00 2.35 0.27 0.75
44 2021-11-06 0.10 0.04 8.42 1.08 3.39 0.10 0.03 0.71 0.12 0.31 8.18 0.05 3.35 0.83 1.92 10.27 0.03 4.81 2.94 3.70 1.42 0.22 2.88 1.18 2.20 0.77 0.13 1.08 0.23 0.47 21.44 9.23 23.82 16.75 21.34 2.21 0.00 2.59 0.21 0.88
45 2021-11-13 0.08 0.02 9.83 1.18 4.19 0.06 0.02 0.97 0.22 0.44 7.33 0.04 4.43 1.29 2.59 9.97 0.01 5.42 2.53 4.01 1.61 0.33 2.68 2.02 2.42 0.64 0.01 1.30 0.04 0.77 22.40 9.70 23.08 15.17 20.56 2.54 0.03 2.74 0.52 0.96
46 2021-11-20 0.10 0.03 13.95 1.42 5.47 0.05 0.01 1.49 0.09 0.58 7.49 0.06 6.33 1.38 3.29 8.29 0.04 5.72 1.62 4.19 2.51 0.30 2.90 1.99 2.53 0.99 0.04 1.43 0.18 0.79 21.37 9.02 22.77 15.28 19.27 3.05 0.03 3.32 0.46 1.25
47 2021-11-27 0.16 0.03 15.24 1.25 6.91 0.07 0.04 2.13 0.13 0.80 8.47 0.03 8.69 1.79 4.46 7.04 0.06 7.00 2.36 4.72 1.94 0.32 2.95 1.83 2.35 1.01 0.02 2.02 0.09 0.89 18.53 8.44 20.84 12.15 16.09 3.93 0.04 3.26 0.37 1.25
48 2021-12-04 0.20 0.04 18.07 0.76 9.40 0.15 0.01 3.18 0.08 1.20 9.32 0.02 9.47 3.11 5.72 5.77 0.02 6.14 3.03 4.18 1.89 0.35 3.34 1.66 2.48 1.48 0.02 1.94 0.31 1.08 16.61 7.94 16.72 12.69 13.83 4.96 0.02 4.30 1.00 2.04
49 2021-12-11 0.23 0.03 19.52 1.43 11.41 0.05 0.01 4.21 0.19 1.60 10.51 0.06 12.26 4.87 7.12 3.98 0.00 5.65 2.94 4.19 2.47 0.54 3.03 1.84 2.49 1.23 0.05 2.80 0.49 1.46 14.47 6.21 16.32 10.72 13.07 6.62 0.05 5.19 0.84 2.52
50 2021-12-18 0.26 0.01 26.42 1.97 14.27 0.02 0.01 7.95 0.15 2.55 10.78 0.07 13.19 5.39 7.93 3.05 0.06 5.95 2.54 4.27 2.76 0.51 3.27 1.49 2.45 1.13 0.02 3.32 0.46 1.70 11.92 6.62 13.85 8.43 10.90 7.35 0.11 6.04 1.54 3.16
51 2021-12-25 0.18 0.00 28.53 2.27 16.81 0.02 0.01 10.44 0.19 3.30 9.26 0.07 15.23 6.52 9.27 3.01 0.04 6.71 2.94 3.95 2.54 0.58 3.20 1.36 2.04 1.20 0.04 4.39 0.37 2.44 9.95 5.65 14.18 8.81 10.48 8.18 0.05 6.68 1.87 3.72
52 2022-01-01 0.10 0.00 33.97 3.30 20.41 0.01 0.00 12.73 0.23 4.07 6.96 0.01 17.80 6.83 10.39 2.13 0.03 5.08 2.87 3.75 1.92 0.48 2.59 1.20 1.76 1.00 0.11 3.81 0.41 2.44 7.70 6.53 14.41 6.24 9.23 10.36 0.07 6.73 2.78 4.75
1 2022-01-08 0.09 0.00 30.93 4.58 19.55 0.00 0.00 10.34 0.22 3.86 5.47 0.04 15.62 7.12 10.17 1.84 0.12 5.08 2.68 3.34 1.84 0.81 2.67 0.85 1.54 0.72 0.06 4.45 0.28 2.70 5.71 5.43 11.09 4.36 7.42 9.27 0.12 7.77 3.07 5.16
2 2022-01-15 0.11 0.00 26.80 5.46 19.10 0.01 0.00 11.01 0.29 3.91 4.49 0.07 14.05 6.60 9.63 1.19 0.08 4.12 2.46 3.05 1.13 0.82 2.15 0.87 1.37 0.38 0.03 4.76 0.42 2.66 3.98 5.18 9.55 4.31 6.79 7.49 0.16 7.89 2.84 5.44
3 2022-01-22 0.04 0.01 28.20 9.13 18.94 0.01 0.01 12.75 0.35 4.69 3.55 0.03 15.56 6.72 10.32 0.76 0.05 3.25 2.59 2.82 1.34 0.40 2.10 1.15 1.45 0.24 0.11 5.56 0.47 3.13 3.11 3.56 8.42 4.44 6.01 4.97 0.26 7.90 4.17 6.11
4 2022-01-29 0.05 0.00 27.01 12.34 18.81 0.00 0.00 12.74 0.41 5.15 2.42 0.05 15.88 7.02 11.23 0.64 0.06 3.12 1.77 2.55 1.18 0.46 1.83 1.11 1.49 0.23 0.12 5.19 0.55 3.01 2.61 3.87 9.04 4.89 6.41 3.92 0.16 7.86 3.79 6.08
5 2022-02-05 0.03 0.00 23.66 15.78 19.14 0.01 0.00 14.84 0.41 5.76 2.28 0.04 16.33 7.17 11.49 0.48 0.06 3.48 1.70 2.39 1.57 0.29 1.93 1.36 1.62 0.25 0.16 5.70 0.58 3.29 3.02 4.76 9.79 6.06 6.94 2.83 0.13 8.49 4.55 6.84
6 2022-02-12 0.04 0.02 23.36 15.63 18.79 0.01 0.00 16.23 0.44 6.21 2.18 0.08 15.79 6.52 11.70 0.51 0.10 2.89 1.57 2.19 1.44 0.54 1.74 1.25 1.51 0.42 0.19 5.57 0.65 3.39 3.86 5.08 9.89 6.16 6.98 3.01 0.20 8.57 3.48 6.75
7 2022-02-19 0.02 0.00 24.22 15.48 18.52 0.00 0.00 17.02 0.35 6.54 2.24 0.02 15.53 6.95 11.26 0.44 0.00 3.20 1.42 2.12 1.52 0.49 1.61 1.30 1.51 0.44 0.14 6.05 1.45 3.94 4.44 5.56 8.95 6.00 7.02 3.24 0.13 8.02 4.35 6.54
8 2022-02-26 0.07 0.00 28.62 12.42 18.53 0.02 0.00 16.79 0.45 6.60 2.11 0.05 15.47 6.64 10.63 0.70 0.16 3.21 1.31 2.25 2.03 0.72 2.00 1.38 1.67 0.61 0.04 5.74 1.19 4.08 6.18 4.77 8.35 5.20 6.94 3.44 0.14 8.29 4.21 6.60

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
35 158 31 6 557 21 286 3
36 142 33 7 511 14 479 1
37 207 28 6 916 11 628 4
38 179 31 14 1,180 17 649 0
39 329 46 7 1,147 17 771 1
40 313 50 6 920 17 867 2
41 374 49 7 743 48 932 6
42 402 102 6 787 36 941 6
43 391 48 15 729 35 1,033 7
44 405 56 30 777 67 1,134 32
45 447 72 29 932 88 1,144 24
46 366 111 44 869 106 1,076 26
47 337 91 48 795 153 1,236 39
48 275 91 72 736 188 1,526 65
49 219 139 69 758 252 1,849 55
50 189 163 64 684 278 2,268 62
51 165 139 66 508 256 2,414 58
52 109 99 52 374 332 1,906 31
1 93 95 37 280 312 1,378 27
2 62 54 18 178 252 925 28
3 34 60 11 133 154 624 9
4 28 53 10 109 126 355 8
5 19 62 10 115 78 325 6
6 18 51 15 128 70 275 6
7 14 48 14 134 66 266 2
8 17 50 15 139 64 201 9

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 2021-09-04 7140 0.04 0.00 625 0.00 0.00 848 0.12 0.00 1305 0.00 0.00 2849 0.04 0.00 1025 0.10 0.00 488 0.00 0.00
36 2021-09-11 8012 0.01 0.00 675 0.00 0.00 1369 0.00 0.00 1224 0.08 0.00 3302 0.00 0.00 930 0.00 0.00 512 0.00 0.00
37 2021-09-18 9317 0.04 0.00 1009 0.00 0.00 1718 0.00 0.00 1544 0.13 0.00 3450 0.06 0.00 985 0.00 0.00 611 0.00 0.00
38 2021-09-25 9821 0.00 0.00 1141 0.00 0.00 1502 0.00 0.00 1647 0.00 0.00 3632 0.00 0.00 1192 0.00 0.00 707 0.00 0.00
39 2021-10-02 9691 0.01 0.00 1052 0.00 0.00 1089 0.00 0.00 1954 0.00 0.00 3498 0.03 0.00 1611 0.00 0.00 487 0.00 0.00
40 2021-10-09 10776 0.00 0.02 799 0.00 0.00 1641 0.00 0.12 2059 0.00 0.00 3870 0.00 0.00 1823 0.00 0.00 584 0.00 0.00
41 2021-10-16 10372 0.03 0.03 614 0.00 0.00 1704 0.00 0.18 1950 0.05 0.00 3622 0.03 0.00 1904 0.05 0.00 578 0.00 0.00
42 2021-10-23 12507 0.03 0.02 634 0.00 0.00 2050 0.00 0.00 2269 0.04 0.00 4560 0.00 0.00 2440 0.08 0.04 554 0.18 0.18
43 2021-10-30 13339 0.03 0.02 1086 0.00 0.00 2119 0.05 0.00 2143 0.00 0.00 4645 0.04 0.00 2920 0.00 0.07 426 0.23 0.23
44 2021-11-06 15442 0.10 0.10 577 0.00 0.00 2323 0.00 0.00 2473 0.04 0.00 5012 0.00 0.00 4625 0.30 0.28 432 0.23 0.69
45 2021-11-13 17547 0.08 0.06 1195 0.00 0.00 2441 0.04 0.00 2836 0.07 0.00 5278 0.08 0.00 5054 0.14 0.18 743 0.00 0.13
46 2021-11-20 16418 0.10 0.05 1826 0.00 0.00 2261 0.00 0.04 2619 0.19 0.00 4930 0.04 0.00 4339 0.21 0.18 443 0.23 0.00
47 2021-11-27 16923 0.16 0.07 2042 0.05 0.05 2584 0.12 0.04 2985 0.30 0.00 4842 0.00 0.00 4200 0.33 0.24 270 0.00 0.00
48 2021-12-04 18563 0.20 0.15 3195 0.13 0.09 2471 0.08 0.04 3069 0.20 0.00 4731 0.06 0.00 4846 0.45 0.50 251 0.00 0.00
49 2021-12-11 19982 0.23 0.05 3417 0.09 0.00 2880 0.31 0.14 3420 0.23 0.00 4778 0.25 0.00 5172 0.27 0.10 315 0.00 0.00
50 2021-12-18 22549 0.26 0.02 1860 0.27 0.00 2759 0.14 0.00 3889 0.36 0.00 4878 0.10 0.02 8638 0.35 0.03 525 0.00 0.00
51 2021-12-25 28471 0.18 0.02 1238 0.00 0.00 3049 0.59 0.07 4030 0.07 0.00 5324 0.15 0.00 14257 0.16 0.02 573 0.00 0.17
52 2022-01-01 29557 0.10 0.01 1378 0.29 0.00 2560 0.00 0.00 3667 0.19 0.00 6284 0.13 0.02 13696 0.07 0.01 1972 0.00 0.00
1 2022-01-08 28420 0.09 0.00 967 0.00 0.00 2249 0.18 0.00 3670 0.08 0.00 7731 0.17 0.00 11791 0.05 0.01 2012 0.00 0.00
2 2022-01-15 23659 0.11 0.01 1045 0.19 0.00 1400 0.21 0.00 2903 0.03 0.00 6816 0.16 0.00 9996 0.08 0.03 1499 0.00 0.00
3 2022-01-22 19585 0.04 0.01 1195 0.00 0.00 1223 0.16 0.00 2591 0.00 0.08 5637 0.07 0.00 8275 0.01 0.00 664 0.00 0.00
4 2022-01-29 16496 0.05 0.00 1099 0.00 0.00 1136 0.26 0.00 2367 0.00 0.00 4650 0.06 0.00 6638 0.03 0.00 606 0.00 0.00
5 2022-02-05 15977 0.03 0.01 1058 0.00 0.00 844 0.12 0.00 2126 0.00 0.05 4004 0.10 0.00 6671 0.00 0.00 1274 0.00 0.00
6 2022-02-12 13873 0.04 0.01 1069 0.00 0.00 985 0.10 0.00 1981 0.00 0.00 3025 0.03 0.00 5917 0.05 0.02 896 0.00 0.00
7 2022-02-19 13127 0.02 0.00 1094 0.00 0.00 832 0.00 0.00 1941 0.05 0.00 2745 0.04 0.00 5451 0.00 0.00 1064 0.00 0.00
8 2022-02-26 10747 0.07 0.02 1177 0.00 0.00 875 0.34 0.11 1269 0.32 0.00 2372 0.00 0.00 4443 0.00 0.02 611 0.00 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 2021-09-04 5970 4.79 613 0.00 693 37.95 1277 1.49 1875 0.05 1025 0.29 487 0.00
36 2021-09-11 6672 7.18 671 0.60 1069 39.85 1187 3.12 2234 0.22 930 0.54 581 0.34
37 2021-09-18 7761 8.09 997 0.40 1310 40.76 1499 5.07 2361 0.30 985 0.71 609 0.00
38 2021-09-25 8511 7.63 1135 0.00 1356 41.67 1612 3.97 2510 0.32 1192 1.01 706 0.00
39 2021-10-02 8560 9.01 1052 0.10 1104 53.53 1913 7.42 2394 0.54 1611 1.49 486 0.00
40 2021-10-09 9659 8.98 792 0.38 1583 39.36 2015 9.43 2864 0.77 1823 1.59 582 0.00
41 2021-10-16 9259 10.07 608 0.16 1676 42.78 1867 8.36 2627 0.72 1904 2.00 577 0.17
42 2021-10-23 10881 8.65 581 0.17 1845 33.88 2199 9.55 3264 1.01 2440 2.95 552 0.00
43 2021-10-30 12076 8.55 965 0.10 2121 31.02 2105 9.88 3540 1.05 2920 4.35 425 0.47
44 2021-11-06 13841 8.19 564 1.24 2048 26.46 2421 10.45 3768 1.70 4612 5.77 428 0.47
45 2021-11-13 15615 7.33 837 0.84 2239 18.49 2767 9.97 4011 1.75 5024 7.48 737 0.14
46 2021-11-20 14367 7.49 1259 2.54 2064 12.74 2556 13.38 3734 2.25 4312 8.23 442 0.00
47 2021-11-27 14584 8.48 1607 2.68 2132 11.16 2907 13.62 3510 3.87 4160 10.17 268 0.00
48 2021-12-04 16376 9.32 2884 2.67 2164 8.27 3002 14.69 3272 4.68 4806 13.82 248 4.84
49 2021-12-11 17598 10.51 2979 3.63 2519 6.95 3354 19.11 3309 6.20 5134 13.63 303 6.60
50 2021-12-18 20239 11.21 1442 8.18 2354 5.61 3813 15.53 3495 7.44 8611 13.10 524 7.25
51 2021-12-25 26063 9.26 947 6.65 2467 4.82 4029 13.73 3796 9.69 14257 8.86 567 8.47
52 2022-01-01 27388 6.96 1378 4.43 1916 3.60 3664 10.15 4576 9.55 13884 6.64 1970 2.28
1 2022-01-08 25176 5.47 983 6.61 1708 2.93 3668 5.97 5382 6.06 11428 5.90 2007 2.19
2 2022-01-15 20583 4.49 824 6.67 1142 2.10 2903 4.79 4911 4.79 9306 4.82 1497 1.54
3 2022-01-22 17595 3.55 1187 3.54 947 1.37 2591 3.24 4354 3.79 7814 3.90 702 2.14
4 2022-01-29 14630 2.43 935 3.32 827 1.21 2367 1.61 3542 3.87 6356 2.03 603 1.66
5 2022-02-05 14285 2.28 859 1.51 667 1.05 2124 1.65 3006 3.76 6395 2.17 1234 1.46
6 2022-02-12 12590 2.18 998 1.70 749 1.47 1980 0.91 2187 5.49 5784 1.64 892 1.57
7 2022-02-19 11858 2.24 997 1.60 539 0.74 1940 0.98 2008 6.57 5366 1.60 1008 0.89
8 2022-02-26 9519 2.11 1018 1.57 581 0.34 1267 0.71 1651 6.18 4393 1.57 609 0.49

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 2021-09-04 2637 5.99 580 1.38 138 5.07 857 14.47 739 1.89 315 1.59
36 2021-09-11 2884 4.92 653 2.91 149 4.03 805 11.55 955 1.57 317 2.84
37 2021-09-18 3467 5.97 978 3.89 139 0.72 1100 10.73 858 3.03 386 6.22
38 2021-09-25 3783 4.73 1083 3.69 222 0.45 1113 8.18 857 2.33 506 5.34
39 2021-10-02 4050 8.12 1070 4.86 232 1.72 1461 13.07 765 5.88 517 7.16
40 2021-10-09 3822 8.19 721 6.38 314 1.27 1542 12.39 717 5.58 524 6.11
41 2021-10-16 3574 10.46 543 6.45 335 0.90 1461 13.76 725 7.31 510 16.08
42 2021-10-23 4016 10.01 628 5.41 454 0.44 1631 11.77 769 8.19 531 20.90
43 2021-10-30 4168 9.38 822 2.92 414 0.97 1541 11.29 778 8.10 608 20.72
44 2021-11-06 3942 10.27 415 10.84 293 0.34 1690 10.00 835 8.26 708 17.09
45 2021-11-13 4483 9.97 708 6.78 317 0.95 1772 8.47 864 9.72 819 19.78
46 2021-11-20 4413 8.29 597 4.02 349 0.57 1735 6.80 975 9.33 756 17.33
47 2021-11-27 4787 7.04 575 4.35 475 0.84 1968 5.95 1058 7.84 709 15.23
48 2021-12-04 4768 5.77 668 3.29 355 1.13 2055 3.94 960 7.60 723 13.14
49 2021-12-11 5520 3.97 684 1.02 317 0.63 2722 2.94 1063 7.34 733 7.09
50 2021-12-18 5852 3.23 677 2.51 356 1.69 3058 1.60 1020 6.18 741 7.29
51 2021-12-25 5476 3.01 311 0.64 383 3.39 3031 1.55 997 6.12 751 5.59
52 2022-01-01 5124 2.13 132 1.52 287 0.35 2746 0.87 1198 3.92 760 4.61
1 2022-01-08 5049 1.84 59 1.69 228 1.32 2757 0.62 1439 2.64 558 5.91
2 2022-01-15 5216 1.19 66 3.03 776 0.26 2166 0.32 1609 1.55 597 4.36
3 2022-01-22 4459 0.76 202 0.50 196 1.02 1892 0.26 1414 1.27 753 1.06
4 2022-01-29 4392 0.64 144 1.39 208 0.48 1846 0.27 1426 0.84 766 1.04
5 2022-02-05 3959 0.48 193 1.04 169 0.00 1623 0.12 1255 0.32 715 1.54
6 2022-02-12 3514 0.51 188 0.53 214 0.00 1486 0.20 972 0.51 651 1.38
7 2022-02-19 3163 0.44 233 0.00 166 0.60 1397 0.29 806 0.74 557 0.54
8 2022-02-26 2431 0.70 253 0.00 175 1.14 794 0.25 696 0.86 511 1.37

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 2021-09-04 2629 1.18 573 1.05 137 4.38 857 1.52 739 0.54 315 0.32
36 2021-09-11 2882 1.15 653 0.61 147 4.76 805 1.61 955 0.63 317 0.95
37 2021-09-18 3469 0.81 980 0.51 138 0.00 1101 1.45 858 0.23 386 1.04
38 2021-09-25 3780 0.82 1083 0.46 219 2.28 1113 0.54 857 0.47 506 2.17
39 2021-10-02 4051 1.14 1071 0.28 232 3.45 1461 1.37 765 1.18 517 1.16
40 2021-10-09 3822 1.31 721 0.14 314 1.91 1542 1.95 717 1.67 524 0.19
41 2021-10-16 3574 1.37 543 0.18 335 5.07 1461 1.57 725 0.97 510 0.20
42 2021-10-23 4017 2.54 628 0.00 455 11.87 1631 2.33 769 0.91 531 0.56
43 2021-10-30 4185 1.15 836 0.12 417 3.12 1541 1.56 778 1.03 608 0.33
44 2021-11-06 3942 1.42 415 0.96 293 1.02 1690 1.60 835 1.44 708 1.41
45 2021-11-13 4480 1.61 705 0.71 317 6.62 1772 1.47 864 1.04 819 1.22
46 2021-11-20 4421 2.51 598 0.50 356 7.30 1735 2.25 975 2.05 756 3.04
47 2021-11-27 4693 1.94 576 0.69 380 3.68 1968 2.69 1058 0.76 709 1.69
48 2021-12-04 4816 1.89 668 0.75 403 4.71 2055 1.95 960 1.46 723 1.80
49 2021-12-11 5614 2.48 684 0.88 411 4.87 2722 3.23 1063 1.03 733 1.91
50 2021-12-18 5999 2.72 677 0.74 503 6.56 3058 2.88 1020 1.67 741 2.70
51 2021-12-25 5474 2.54 314 1.59 378 7.41 3031 2.18 997 1.20 751 3.73
52 2022-01-01 5163 1.92 133 3.76 324 5.56 2747 1.49 1198 1.25 760 2.63
1 2022-01-08 5163 1.84 105 3.81 296 7.43 2757 1.38 1439 0.83 558 3.41
2 2022-01-15 4761 1.13 66 1.52 320 2.19 2167 0.51 1609 1.24 597 2.51
3 2022-01-22 4494 1.34 200 0.50 234 5.98 1892 1.16 1413 0.71 753 1.73
4 2022-01-29 4497 1.18 144 0.69 313 3.19 1846 1.14 1426 0.56 766 1.70
5 2022-02-05 3959 1.57 193 3.63 169 6.51 1623 1.42 1255 0.72 715 1.68
6 2022-02-12 3539 1.44 188 1.60 239 5.02 1486 1.14 972 0.62 651 2.00
7 2022-02-19 3163 1.52 233 2.58 166 7.83 1397 0.72 806 0.99 557 1.97
8 2022-02-26 2463 2.03 254 1.97 205 8.29 795 0.88 696 1.58 511 1.96

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 2021-09-04 2665 0.23 580 0.00 138 2.17 832 0.36 792 0.00 315 0.00
36 2021-09-11 2935 0.24 653 0.00 149 0.67 796 0.50 1015 0.20 317 0.00
37 2021-09-18 3488 0.17 978 0.00 138 1.45 1073 0.19 907 0.11 386 0.26
38 2021-09-25 3810 0.37 1083 0.00 219 1.83 1086 0.74 914 0.00 506 0.40
39 2021-10-02 4057 0.17 1070 0.00 232 0.86 1428 0.21 809 0.00 513 0.39
40 2021-10-09 3769 0.16 721 0.00 238 1.26 1503 0.20 779 0.00 524 0.00
41 2021-10-16 3495 0.20 543 0.18 229 0.87 1436 0.07 777 0.00 510 0.59
42 2021-10-23 3876 0.15 628 0.00 276 0.36 1611 0.12 827 0.00 531 0.56
43 2021-10-30 4113 0.36 836 0.00 313 3.51 1510 0.13 841 0.24 608 0.00
44 2021-11-06 3903 0.77 415 0.00 210 6.19 1663 0.24 906 0.33 708 1.41
45 2021-11-13 4537 0.64 705 0.14 325 4.92 1742 0.17 943 0.21 819 0.85
46 2021-11-20 4435 0.99 597 0.17 349 8.02 1704 0.35 1028 0.49 756 0.53
47 2021-11-27 4739 1.01 575 0.52 380 8.68 1968 0.46 1105 0.00 709 0.42
48 2021-12-04 4875 1.48 668 0.45 403 12.90 2055 0.44 1019 0.29 723 0.69
49 2021-12-11 5658 1.22 684 0.88 411 9.98 2721 0.55 1108 0.54 733 0.14
50 2021-12-18 5920 1.08 677 0.30 397 11.08 3057 0.46 1048 0.38 741 0.00
51 2021-12-25 5508 1.20 311 2.89 378 12.17 3031 0.13 1034 0.29 751 0.53
52 2022-01-01 5190 1.00 132 1.52 321 10.28 2746 0.36 1230 0.16 760 0.66
1 2022-01-08 5173 0.72 101 1.98 295 8.14 2757 0.07 1454 0.21 558 1.08
2 2022-01-15 4797 0.38 66 4.55 320 0.94 2166 0.14 1646 0.43 597 0.34
3 2022-01-22 4500 0.24 202 0.00 227 3.08 1890 0.00 1426 0.21 753 0.13
4 2022-01-29 4429 0.23 144 1.39 228 1.32 1846 0.16 1443 0.14 766 0.00
5 2022-02-05 4038 0.25 193 2.07 233 0.86 1623 0.12 1270 0.08 715 0.14
6 2022-02-12 3549 0.42 188 2.13 239 2.51 1486 0.07 982 0.20 651 0.31
7 2022-02-19 3179 0.44 233 0.86 166 4.22 1397 0.00 822 0.61 557 0.00
8 2022-02-26 2466 0.61 253 0.79 205 3.41 791 0.13 704 0.57 511 0.20

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 2021-09-04 2535 21.97 580 21.21 N.A. N.A. 857 26.49 739 21.52 311 14.15
36 2021-09-11 2745 18.62 653 15.62 N.A. N.A. 805 21.24 955 18.74 311 18.01
37 2021-09-18 3336 27.46 978 33.44 N.A. N.A. 1104 27.72 858 22.26 378 23.02
38 2021-09-25 3558 33.16 1083 43.40 N.A. N.A. 1113 31.63 857 25.20 497 27.97
39 2021-10-02 3821 30.02 1070 32.52 N.A. N.A. 1461 32.44 765 21.31 513 30.99
40 2021-10-09 3506 26.24 721 17.48 N.A. N.A. 1542 33.01 717 23.85 515 21.75
41 2021-10-16 3243 22.91 543 16.21 N.A. N.A. 1461 27.24 725 15.17 502 28.88
42 2021-10-23 3554 22.14 628 11.78 N.A. N.A. 1631 25.32 769 21.98 515 25.05
43 2021-10-30 3710 19.65 836 7.06 N.A. N.A. 1540 24.68 778 19.15 539 25.97
44 2021-11-06 3624 21.44 415 16.39 N.A. N.A. 1675 23.28 835 17.96 689 24.38
45 2021-11-13 4161 22.40 709 12.83 N.A. N.A. 1766 27.18 864 21.06 812 21.55
46 2021-11-20 4067 21.37 597 13.57 N.A. N.A. 1735 23.34 975 21.85 743 22.21
47 2021-11-27 4290 18.53 575 11.83 N.A. N.A. 1951 21.78 1058 16.07 694 18.88
48 2021-12-04 4431 16.61 668 10.93 N.A. N.A. 2053 18.56 960 15.31 708 17.23
49 2021-12-11 5206 14.56 684 11.11 N.A. N.A. 2713 14.19 1063 14.77 716 18.30
50 2021-12-18 5522 12.39 677 7.68 N.A. N.A. 3058 10.99 1020 13.24 734 20.57
51 2021-12-25 5104 9.95 311 9.00 N.A. N.A. 3031 7.06 997 12.04 733 18.55
52 2022-01-01 4854 7.70 132 11.36 N.A. N.A. 2746 5.39 1198 9.93 747 11.91
1 2022-01-08 4902 5.71 104 6.73 N.A. N.A. 2757 2.76 1439 7.23 544 15.26
2 2022-01-15 4472 3.98 66 1.52 N.A. N.A. 2166 1.85 1609 4.54 588 10.37
3 2022-01-22 4275 3.11 202 2.97 N.A. N.A. 1892 1.48 1413 4.18 732 5.19
4 2022-01-29 4204 2.59 144 1.39 N.A. N.A. 1846 1.08 1426 3.44 753 5.05
5 2022-02-05 3814 3.02 193 1.55 N.A. N.A. 1623 1.79 1255 4.46 700 3.71
6 2022-02-12 3317 3.86 188 1.06 N.A. N.A. 1486 2.49 972 4.63 645 6.82
7 2022-02-19 3015 4.44 233 0.43 N.A. N.A. 1397 3.08 806 3.85 553 10.13
8 2022-02-26 2248 6.18 253 1.98 N.A. N.A. 794 4.91 696 6.18 503 10.34

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 2021-09-04 1992 1.05 98 0.00 138 0.00 645 1.71 792 1.01 311 0.64
36 2021-09-11 2262 0.62 202 0.00 149 0.00 584 1.03 1015 0.69 307 0.33
37 2021-09-18 2477 0.44 247 0.40 131 0.00 809 0.49 906 0.55 378 0.26
38 2021-09-25 2552 0.67 130 0.00 221 0.00 788 1.14 914 0.88 497 0.00
39 2021-10-02 2721 0.62 120 0.00 232 0.43 1042 0.38 809 1.48 513 0.00
40 2021-10-09 2986 0.57 332 0.30 238 0.00 1118 0.81 779 0.77 515 0.19
41 2021-10-16 2844 1.69 250 1.60 335 0.90 1032 1.55 725 2.90 502 0.80
42 2021-10-23 3351 1.07 353 0.28 453 0.22 1200 1.33 827 1.81 515 0.58
43 2021-10-30 3332 1.05 601 0.67 313 0.64 1042 1.34 778 1.80 593 0.17
44 2021-11-06 3029 2.21 154 3.90 210 2.38 1069 1.87 906 3.64 689 0.44
45 2021-11-13 3464 2.54 326 0.92 317 0.32 1142 2.19 864 6.71 812 0.12
46 2021-11-20 3478 3.05 310 2.90 349 0.86 1047 2.77 1028 4.96 743 1.88
47 2021-11-27 3898 3.93 305 3.61 475 1.47 1317 3.80 1105 6.88 694 1.30
48 2021-12-04 3792 4.96 368 4.89 465 1.94 1225 4.90 1019 8.93 708 1.41
49 2021-12-11 3830 6.58 369 5.42 356 1.97 1281 7.18 1108 11.01 715 1.54
50 2021-12-18 3815 7.29 356 6.18 496 3.02 1181 9.31 1048 10.21 734 3.27
51 2021-12-25 3131 8.18 69 10.14 378 2.91 914 10.83 1034 10.15 733 4.64
52 2022-01-01 3204 10.36 124 14.52 320 2.50 782 14.58 1230 11.63 747 6.56
1 2022-01-08 3367 9.27 99 4.04 296 8.45 966 10.87 1454 9.42 544 7.54
2 2022-01-15 3364 7.49 59 3.39 412 1.21 657 11.26 1646 8.81 588 4.42
3 2022-01-22 3100 4.97 186 1.08 226 2.65 529 6.43 1425 6.32 732 3.01
4 2022-01-29 3211 3.92 108 0.00 312 3.21 593 6.24 1443 4.92 753 1.06
5 2022-02-05 2755 2.83 68 1.47 233 2.15 480 3.33 1270 3.15 700 2.29
6 2022-02-12 2329 3.01 84 0.00 239 1.26 376 3.72 982 3.67 645 2.64
7 2022-02-19 2037 3.24 100 0.00 201 1.00 357 3.64 822 4.38 553 2.71
8 2022-02-26 1858 3.44 124 0.81 194 2.06 331 4.83 704 1.99 503 5.77

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