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Respiratory Virus Report, Week 43 - ending October 29, 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

Respiratory virus activity has increased in recent weeks in Canada, and activity of several viruses is above expected levels.

  • Activity of influenza A is increasing and is now above expected levels for this time of year (1,077 detections; 6.4% positive). Minimal influenza B activity has been reported this season.
  • Respiratory syncytial virus activity is increasing and is above expected levels for this time of year (1,045 detections; 7.0% positive).
  • Activity of other respiratory viruses is relatively stable and near expected levels for this time of year.
    • With the exception of enterovirus/rhinovirus, where activity remains far below expected levels (754 detections; 10.8% positive).
  • 32/34 sentinel laboratories reported surveillance data.

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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 October 29, 2022 (surveillance week 2022-43)
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 264 0 0 0 0 0 264 13 264 0 3 0 0 0 264 3 264 5 264 31 264 1
Prince Edward Island 56 0 0 0 0 0 56 1 56 0 1 3 1 0 56 3 56 3 56 29 56 0
Nova Scotia 264 0 0 8 8 0 264 17 66 2 0 0 0 0 66 3 66 0 66 11 66 2
New Brunswick 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.
Atlantic 584 0 0 8 8 0 584 31 386 2 4 3 1 0 386 9 386 8 386 71 386 3
Région Nord-Est 1050 0 0 2 2 1 195 20 22 0 0 3 0 0 22 3 22 1 N.C. N.C. 22 0
Québec-Chaudière-Appalaches 415 0 0 2 2 0 418 91 181 2 0 5 0 0 191 12 181 14 N.C. N.C. 181 3
Centre-du-Québec 330 0 0 3 3 0 325 56 35 1 0 4 0 0 35 3 35 4 N.C. N.C. 35 0
Montréal-Laval 1361 0 0 35 35 1 1191 173 636 9 0 11 0 0 636 29 652 38 N.C. N.C. 614 2
Ouest du Québec 279 0 0 1 1 0 234 63 51 1 0 6 0 0 51 8 51 4 N.C. N.C. 51 1
Montérégie 372 0 0 11 11 1 372 74 3 0 0 0 0 0 3 0 3 0 N.C. N.C. 3 0
Province of Québec 3807 0 0 54 54 3 2735 477 928 13 0 29 0 0 938 55 944 61 N.C. N.C. 906 6
P.H.O.L. - Ottawa 104 0 3 0 3 0 104 2 104 0 0 0 0 3 104 0 104 7 104 6 104 1
EORLA 384 0 0 20 20 0 384 62 43 0 2 1 0 0 43 4 43 3 43 17 43 3
P.H.O.L. - Kingston 93 0 15 0 15 0 93 8 89 0 0 0 0 6 89 3 89 2 89 6 89 1
UHN / Mount Sinai Hospital 554 0 0 17 17 1 554 7 45 0 0 1 0 0 45 0 45 0 45 2 45 4
P.H.O.L. - Toronto 617 0 63 1 49 0 616 13 616 0 0 0 0 30 616 10 616 9 616 63 616 4
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 2072 1 114 129 244 0 2072 97 1750 1 0 2 0 37 1751 10 1751 7 1751 59 1749 18
P.H.O.L. - Sault Ste. Marie 6 0 0 0 0 0 6 0 6 0 0 0 0 0 6 0 6 0 6 0 6 0
P.H.O.L. - Timmins 47 0 5 0 5 0 47 0 47 0 0 0 0 6 47 1 47 6 47 6 47 7
St. Joseph's - London 171 0 0 9 9 0 171 19 42 0 0 0 0 2 42 1 42 0 42 6 42 1
P.H.O.L. - London 240 0 38 1 33 0 240 15 240 0 0 0 0 12 240 5 240 1 240 16 240 4
P.H.O.L. - Orillia 119 0 28 0 28 0 119 10 119 0 0 0 0 4 119 3 119 0 119 18 119 2
P.H.O.L. - Thunder Bay 16 0 8 0 8 0 16 0 16 0 0 0 0 0 16 0 16 0 16 1 16 0
P.H.O.L. - Sudbury 7 0 0 0 0 0 7 0 7 0 0 0 0 0 7 0 7 0 7 1 7 0
P.H.O.L. - Hamilton 194 0 12 0 12 0 191 23 191 0 0 0 0 9 191 1 191 0 191 23 191 4
P.H.O.L. - Peterborough 55 0 9 0 9 0 55 4 55 0 0 0 0 3 55 2 55 0 55 9 55 0
St. Joseph's - Hamilton 1179 0 0 151 151 0 1179 105 1179 0 0 41 0 0 1179 1 1179 2 1179 101 0 0
Province of Ontario 5858 1 295 328 603 1 5854 365 4549 1 2 45 0 112 4550 41 4550 37 4550 334 3369 49
Manitoba 731 1 3 10 14 0 731 21 158 0 0 6 3 0 158 6 185 6 158 38 185 2
Saskatchewan 707 0 0 57 57 0 512 9 271 1 2 17 1 0 271 9 271 17 271 44 272 13
Alberta 2535 9 164 38 211 0 2171 57 1065 11 2 18 0 0 1065 14 1062 2 1051 120 1065 53
Prairies 3973 10 167 105 282 0 3414 87 1494 12 4 41 4 0 1494 29 1518 25 1480 202 1522 68
British Columbia 2344 4 29 0 97 2 2192 80 567 9 5 34 1 0 567 8 567 8 542 130 542 2
Yukon 9 0 0 0 0 0 9 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 53 0 0 0 0 0 53 4 0 0 0 0 0 0 0 0 0 0 53 17 0 0
Nunavut 97 0 33 0 33 0 97 1 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C.
Territories 159 0 33 0 33 0 159 5 0 0 0 0 0 0 0 0 0 0 53 17 0 0
CANADA 16725 15 524 495 1077 6 14938 1045 7924 37 15 152 6 112 7935 142 7965 139 7011 754 6725 128

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 October 29, 2022 (surveillance weeks 2022-35 to 2022-43)
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 1626 0 1 0 1 0 1626 57 1626 2 7 8 3 0 1626 15 1626 40 1626 223 1626 1
Prince Edward Island 360 0 1 0 1 0 360 7 360 0 5 19 1 0 360 24 360 6 360 193 360 1
Nova Scotia 2230 0 3 21 24 1 2229 68 422 3 4 4 1 0 422 15 422 0 422 103 422 3
New Brunswick 3131 0 5 23 28 1 2141 19 390 0 5 24 1 0 390 38 390 1 390 129 390 7
Atlantic 7347 0 10 44 54 2 6356 151 2798 5 21 55 6 0 2798 92 2798 47 2798 648 2798 12
Région Nord-Est 7712 0 0 6 6 1 1352 48 213 3 2 14 0 0 213 11 213 2 N.C. N.C. 213 0
Québec-Chaudière-Appalaches 2443 0 0 5 5 0 2448 268 1243 13 4 16 0 0 1354 69 1243 55 N.C. N.C. 1243 9
Centre-du-Québec 1788 0 0 6 6 1 1770 157 236 10 0 11 0 0 236 12 236 29 N.C. N.C. 236 1
Montréal-Laval 9010 0 0 75 75 5 8215 713 4552 66 7 87 4 0 4552 131 4598 236 N.C. N.C. 4444 26
Ouest du Québec 1802 0 0 9 9 0 1575 204 364 10 0 26 0 0 364 55 364 14 N.C. N.C. 364 7
Montérégie 3403 0 0 29 29 3 3337 281 24 0 0 1 0 0 24 0 24 0 N.C. N.C. 24 0
Province of Québec 26158 0 0 130 130 10 18697 1671 6632 102 13 155 4 0 6743 278 6678 336 N.C. N.C. 6524 43
P.H.O.L. - Ottawa 468 0 4 0 4 0 468 7 468 0 0 0 0 7 468 0 468 10 468 43 468 1
EORLA 2470 0 0 31 31 1 2470 177 361 4 2 6 2 0 361 11 361 8 361 119 361 5
P.H.O.L. - Kingston 491 0 15 0 15 0 491 24 487 0 0 0 0 18 487 12 487 5 487 87 487 2
UHN / Mount Sinai Hospital 4107 0 1 39 40 4 4107 24 175 0 0 1 0 0 175 1 175 0 175 7 175 13
P.H.O.L. - Toronto 3028 18 183 2 84 0 3025 41 3025 0 0 0 0 145 3027 46 3024 30 3025 416 3024 21
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 25206 5 151 292 448 2 25206 323 4875 4 0 15 0 85 4887 28 4894 12 4866 197 4744 22
P.H.O.L. - Sault Ste. Marie 49 0 0 0 0 0 49 0 49 0 0 0 0 0 49 0 49 0 49 6 49 0
P.H.O.L. - Timmins 127 0 6 0 6 0 127 0 127 0 0 0 0 9 127 1 127 6 127 27 127 9
St. Joseph's - London 695 0 0 12 12 0 695 48 478 0 0 0 0 12 512 9 512 0 512 108 101 3
P.H.O.L. - London 1146 1 51 1 46 0 1146 39 1146 0 0 0 0 48 1146 18 1146 3 1146 181 1146 8
P.H.O.L. - Orillia 434 0 38 1 39 0 434 20 434 0 0 0 0 28 434 9 434 6 434 101 434 5
P.H.O.L. - Thunder Bay 87 0 12 0 12 0 87 0 87 0 0 0 0 1 87 1 87 0 87 32 87 1
P.H.O.L. - Sudbury 57 0 0 0 0 0 57 1 57 0 0 0 0 2 57 1 57 0 57 9 57 0
P.H.O.L. - Hamilton 818 0 18 0 18 2 815 49 815 0 0 0 0 38 815 9 815 2 815 127 815 6
P.H.O.L. - Peterborough 286 0 15 0 15 0 286 17 286 0 0 0 0 15 286 5 286 2 286 74 286 3
St. Joseph's - Hamilton 7522 0 0 317 317 3 7522 293 7522 0 0 236 0 0 7522 2 7522 32 7522 981 0 0
Province of Ontario 46991 24 494 695 1087 12 46985 1063 20392 8 2 258 2 408 20440 153 20444 116 20417 2515 12361 99
Manitoba 5123 1 5 18 24 0 5123 62 1234 0 2 23 3 0 1234 43 1426 45 1234 337 1426 5
Saskatchewan 4847 0 0 81 81 1 4206 23 1874 4 12 78 7 0 1876 60 1878 76 1876 359 1874 26
Alberta 18519 33 272 68 373 6 16298 211 8219 53 25 129 8 0 8218 107 8211 40 8053 1429 8219 147
Prairies 28489 34 277 167 478 7 25627 296 11327 57 39 230 18 0 11328 210 11515 161 11163 2125 11519 178
British Columbia 20778 49 154 7 326 7 19390 234 4880 26 47 124 22 6 4880 101 4880 82 4738 1237 4738 23
Yukon 55 0 0 0 0 0 55 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 350 0 1 0 1 0 350 14 0 0 0 0 0 0 0 0 0 0 350 147 0 0
Nunavut 703 3 76 0 79 0 703 19 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 1108 3 77 0 80 0 1108 34 0 0 0 0 0 0 0 0 0 0 350 147 0 0
CANADA 130871 110 1012 1043 2155 38 118163 3449 46029 198 122 822 52 414 46189 834 46315 742 39466 6672 37940 355

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 2.24 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 2.07 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 1.96 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 1.39 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 2.07 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 1.67 1.31 0.44 2.25 1.39 1.82 1.42 0.16 0.00 0.92 0.05 0.34 19.24 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 1.53 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 1.87 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 2.66 0.03 0.00 2.96 0.77 1.92 0.05 0.02 0.00 0.45 0.05 0.25 4.74 8.18 0.07 2.11 0.63 1.14 4.23 10.01 0.06 3.89 2.64 3.20 1.53 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 6.44 0.03 0.01 5.23 0.68 2.60 0.04 0.02 0.00 0.55 0.06 0.23 7.00 8.11 0.07 2.16 0.55 1.32 4.06 9.38 0.07 3.98 3.18 3.56 1.79 1.15 0.37 2.42 1.63 1.96 1.75 0.36 0.02 1.64 0.12 0.57 10.75 19.64 13.14 28.73 21.67 24.95 1.90 1.05 0.00 2.35 0.27 0.75

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 77 63 436 15 130 25
36 111 71 63 448 11 128 23
37 120 77 54 715 9 128 34
38 109 63 73 885 12 186 72
39 151 100 70 932 24 286 106
40 185 83 71 847 38 325 147
41 211 111 98 849 48 504 243
42 303 110 111 806 70 717 460
43 322 142 139 754 128 1,045 1,083

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 12499 0.14 0.04 906 0.00 0.00 2520 0.12 0.00 4367 0.16 0.02 2565 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 14354 1.00 0.03 818 0.24 0.00 2339 0.21 0.00 5546 1.05 0.05 3080 0.88 0.03 2430 1.85 0.00 141 4.26 0.00
41 2022-10-15 15867 1.53 0.01 776 1.68 0.00 3275 0.49 0.00 5630 2.08 0.00 3520 1.02 0.03 2540 1.85 0.00 126 10.32 0.00
42 2022-10-22 16975 2.66 0.05 1001 2.60 0.00 3608 0.86 0.03 5931 3.79 0.08 3804 2.18 0.03 2519 2.58 0.08 112 18.75 0.00
43 2022-10-29 16725 6.44 0.04 584 1.37 0.00 3807 1.42 0.08 5858 10.29 0.02 3973 7.10 0.00 2344 4.14 0.09 159 20.75 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 11304 1.13 785 0.64 1737 2.71 4367 1.01 2414 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 13115 2.48 677 2.95 1727 8.92 5545 1.97 2706 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 15133 4.74 799 3.38 2643 13.09 5931 3.74 3352 2.21 2296 1.92 112 3.57
43 2022-10-29 14938 7.00 584 5.31 2735 17.44 5854 6.24 3414 2.55 2192 3.65 159 3.14

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 4971 3.72 298 2.35 578 6.40 2143 2.94 1385 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 7156 4.23 354 3.39 904 4.09 3771 3.58 1420 4.72 707 7.36
43 2022-10-29 7924 4.06 386 2.59 928 4.53 4549 3.52 1494 4.08 566 8.66

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 2.24 294 6.12 632 2.53 1139 0.61 965 2.69 402 2.49
36 2022-09-10 3434 2.07 280 3.57 659 3.03 1045 0.67 1028 2.43 422 2.13
37 2022-09-17 3924 1.96 301 4.65 680 3.09 1301 1.00 1111 1.35 530 2.64
38 2022-09-24 4536 1.39 334 1.20 731 3.42 1649 0.49 1275 1.41 547 1.46
39 2022-10-01 4834 2.07 286 2.80 742 4.18 1941 0.98 1327 2.11 538 2.60
40 2022-10-08 4980 1.67 298 4.03 581 5.68 2149 0.84 1385 1.23 567 0.53
41 2022-10-15 5946 1.87 265 3.77 864 4.63 2895 0.59 1323 2.12 599 2.67
42 2022-10-22 7167 1.53 354 1.98 915 4.04 3771 0.61 1420 1.69 707 2.69
43 2022-10-29 7935 1.79 386 2.33 938 5.86 4550 0.90 1494 1.94 566 1.41

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 3925 1.38 301 2.66 666 3.30 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 5010 1.42 298 1.01 581 5.34 2151 0.37 1413 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 7189 1.54 354 0.85 911 6.70 3777 0.45 1440 1.53 707 1.13
43 2022-10-29 7965 1.75 386 2.07 944 6.46 4550 0.81 1518 1.65 566 1.41

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 4402 19.24 298 20.47 - - 2150 15.58 1364 19.79 546 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 6244 12.91 354 21.47 - - 3775 7.58 1389 18.14 678 26.40
43 2022-10-29 7011 10.75 386 18.39 - - 4550 7.34 1480 13.65 541 24.03

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 3197 0.28 301 0.00 655 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 3993 0.95 298 1.01 568 0.35 1168 0.60 1413 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 5938 1.18 354 0.00 884 1.02 2583 0.81 1439 2.50 678 0.59
43 2022-10-29 6725 1.90 386 0.78 906 0.66 3369 1.45 1522 4.47 541 0.37

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