Respiratory Virus Report, Week 42 - ending October 22, 2022

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 is increasing in Canada, but is near expected levels for most viruses.

  • Enterovirus/Rhinovirus remains the most common seasonal respiratory virus detected in Canada (790 detections; 12.9% positive).   Activity continues to decrease and remains far below expected levels for this time of year.
  • Overall activity of influenza A is below the seasonal threshold (420 detections; 2.5% positive) but has increased in recent weeks. Activity remains within expected levels for this time of year.
  • Respiratory syncytial virus activity has increased in recent weeks (705 detections; 4.7% positive) and is above expected levels for this time of year.
  • Activity of other respiratory viruses is stable and near expected levels for this time of year.            
  • 32/34 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 October 22, 2022 (surveillance week 2022-42)
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 208 0 0 0 0 0 208 8 208 0 1 0 0 0 208 0 208 3 208 30 208 0
Prince Edward Island 41 0 1 0 1 0 41 1 41 0 1 4 0 0 41 1 41 0 41 17 41 0
Nova Scotia 240 0 1 4 5 0 240 18 50 1 1 0 0 0 50 1 50 0 50 11 50 0
New Brunswick 512 0 4 16 20 0 310 0 55 0 1 3 0 0 55 5 55 0 55 18 55 0
Atlantic 1001 0 6 20 26 0 799 27 354 1 4 7 0 0 354 7 354 3 354 76 354 0
Région Nord-Est 963 0 0 0 0 0 176 10 28 1 0 1 0 0 28 1 28 1 N.C. N.C. 28 0
Québec-Chaudière-Appalaches 336 0 0 1 1 0 337 50 183 2 0 0 0 0 194 6 183 11 N.C. N.C. 183 1
Centre-du-Québec 288 0 0 1 1 0 286 32 24 3 0 3 0 0 24 1 24 6 N.C. N.C. 24 0
Montréal-Laval   1291 0 0 15 15 0 1158 154 607 7 1 9 1 0 607 21 614 41 N.C. N.C. 587 7
Ouest du Québec 232 0 0 4 4 0 198 43 45 2 0 5 0 0 45 8 45 2 N.C. N.C. 45 1
Montérégie 482 0 0 10 10 1 474 55 4 0 0 1 0 0 4 0 4 0 N.C. N.C. 4 0
Province of Québec  3592 0 0 31 31 1 2629 344 891 15 1 19 1 0 902 37 898 61 N.C. N.C. 871 9
P.H.O.L. - Ottawa 107 0 0 0 0 0 107 3 107 0 0 0 0 1 107 0 107 0 107 10 107 0
EORLA 372 0 0 3 3 1 372 38 39 0 0 1 0 0 39 1 39 0 39 6 39 0
P.H.O.L. - Kingston 77 0 0 0 0 0 77 5 77 0 0 0 0 2 77 1 77 1 77 17 77 0
UHN / Mount Sinai Hospital 537 0 0 6 6 2 537 4 22 0 0 0 0 0 22 0 22 0 22 2 22 4
P.H.O.L. - Toronto   363 0 38 0 14 0 363 6 363 0 0 0 0 22 363 6 363 6 363 32 363 9
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 2709 3 29 55 87 2 2709 62 1451 0 0 0 0 30 1451 8 1457 4 1455 50 1453 1
P.H.O.L. - Sault Ste. Marie 7 0 0 0 0 0 7 0 7 0 0 0 0 0 7 0 7 0 7 0 7 0
P.H.O.L. - Timmins 18 0 1 0 1 0 18 0 18 0 0 0 0 1 18 0 18 0 18 2 18 1
St. Joseph's - London   118 0 0 3 3 0 118 16 64 0 0 0 0 3 64 1 64 0 64 17 29 2
P.H.O.L. - London 192 0 7 0 6 0 192 6 192 0 0 0 0 11 192 2 192 0 192 21 192 1
P.H.O.L. - Orillia 75 0 6 0 6 0 75 5 75 0 0 0 0 8 75 2 75 1 75 14 75 1
P.H.O.L. - Thunder Bay 12 0 3 0 3 0 12 0 12 0 0 0 0 0 12 0 12 0 12 2 12 0
P.H.O.L. - Sudbury 5 0 0 0 0 0 5 1 5 0 0 0 0 0 5 0 5 0 5 0 5 0
P.H.O.L. - Hamilton 106 0 3 0 3 0 106 9 106 0 0 0 0 8 106 2 106 0 106 7 106 1
P.H.O.L. - Peterborough 78 0 3 0 3 0 78 6 78 0 0 0 0 2 78 0 78 1 78 11 78 1
St. Joseph's - Hamilton 1155 0 0 90 90 0 1155 61 1155 0 0 46 0 0 1155 0 1155 4 1155 95 0 0
Province of Ontario 5931 3 90 157 225 5 5931 222 3771 0 0 47 0 88 3771 23 3777 17 3775 286 2583 21
Manitoba 693 0 2 1 3 0 693 8 149 0 0 7 0 0 149 5 174 8 149 43 174 1
Saskatchewan 610 0 0 15 15 0 473 5 237 2 3 16 0 0 237 8 237 11 237 61 236 7
Alberta 2321 2 33 19 54 1 2034 53 945 16 3 17 1 0 945 11 945 2 923 135 945 27
Prairies 3624 2 35 35 72 1 3200 66 1331 18 6 40 1 0 1331 24 1356 21 1309 239 1355 35
British Columbia 2518 4 18 8 65 2 2295 43 684 7 10 30 1 0 684 19 684 8 655 176 655 4
Yukon 2 0 0 0 0 0 6 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 48 0 1 0 1 0 48 2 0 0 0 0 0 0 0 0 0 0 48 13 0 0
Nunavut N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. 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 50 0 1 0 1 0 54 3 0 0 0 0 0 0 0 0 0 0 48 13 0 0
CANADA 16716 9 150 251 420 9 14908 705 7031 41 21 143 3 88 7042 110 7069 110 6141 790 5818 69

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 22, 2022 (surveillance weeks 2022-35 to 2022-42)
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 1362 0 1 0 1 0 1362 44 1362 2 4 8 3 0 1362 12 1362 35 1362 192 1362 0
Prince Edward Island 304 0 1 0 1 0 304 6 304 0 4 16 0 0 304 21 304 3 304 164 304 1
Nova Scotia 1966 0 3 13 16 1 1965 51 356 1 4 4 1 0 356 12 356 0 356 92 356 1
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 6763 0 10 36 46 2 5772 120 2412 3 17 52 5 0 2412 83 2412 39 2412 577 2412 9
Région Nord-Est 6660 0 0 4 4 0 1155 28 189 3 2 11 0 0 189 8 189 1 N.C. N.C. 189 0
Québec-Chaudière-Appalaches 2024 0 0 3 3 0 2026 176 1062 11 4 11 0 0 1160 57 1062 41 N.C. N.C. 1062 6
Centre-du-Québec 1459 0 0 3 3 1 1446 101 202 9 0 7 0 0 202 9 202 25 N.C. N.C. 202 1
Montréal-Laval   7637 0 0 40 40 4 7013 539 3905 56 7 76 4 0 3905 102 3935 198 N.C. N.C. 3819 24
Ouest du Québec 1522 0 0 8 8 0 1341 141 313 9 0 20 0 0 313 47 313 10 N.C. N.C. 313 6
Montérégie 3030 0 0 18 18 2 2964 207 21 0 0 1 0 0 21 0 21 0 N.C. N.C. 21 0
Province of Québec  22332 0 0 76 76 7 15945 1192 5692 88 13 126 4 0 5790 223 5722 275 N.C. N.C. 5606 37
P.H.O.L. - Ottawa 364 0 1 0 1 0 364 5 364 0 0 0 0 4 364 0 364 3 364 37 364 0
EORLA 2086 0 0 11 11 1 2086 115 318 4 0 5 2 0 318 7 318 5 318 102 318 2
P.H.O.L. - Kingston 398 0 0 0 0 0 398 16 398 0 0 0 0 12 398 9 398 3 398 81 398 1
UHN / Mount Sinai Hospital 3553 0 1 22 23 3 3553 17 130 0 0 0 0 0 130 1 130 0 130 5 130 9
P.H.O.L. - Toronto   2411 18 120 1 35 0 2409 28 2409 0 0 0 0 115 2411 36 2408 21 2409 353 2408 17
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 23134 4 37 163 204 2 23134 226 3125 3 0 13 0 48 3136 18 3143 5 3115 138 2995 4
P.H.O.L. - Sault Ste. Marie 43 0 0 0 0 0 43 0 43 0 0 0 0 0 43 0 43 0 43 6 43 0
P.H.O.L. - Timmins 80 0 1 0 1 0 80 0 80 0 0 0 0 3 80 0 80 0 80 21 80 2
St. Joseph's - London   524 0 0 3 3 0 524 29 436 0 0 0 0 10 470 8 470 0 470 102 59 2
P.H.O.L. - London 906 1 13 0 13 0 906 24 906 0 0 0 0 36 906 13 906 2 906 165 906 4
P.H.O.L. - Orillia 315 0 10 1 11 0 315 10 315 0 0 0 0 24 315 6 315 6 315 83 315 3
P.H.O.L. - Thunder Bay 71 0 4 0 4 0 71 0 71 0 0 0 0 1 71 1 71 0 71 31 71 1
P.H.O.L. - Sudbury 50 0 0 0 0 0 50 1 50 0 0 0 0 2 50 1 50 0 50 8 50 0
P.H.O.L. - Hamilton 624 0 6 0 6 2 624 26 624 0 0 0 0 29 624 8 624 2 624 104 624 2
P.H.O.L. - Peterborough 231 0 6 0 6 0 231 13 231 0 0 0 0 12 231 3 231 2 231 65 231 3
St. Joseph's - Hamilton 6343 0 0 166 166 3 6343 188 6343 0 0 195 0 0 6343 1 6343 30 6343 880 0 0
Province of Ontario 41133 23 199 367 484 11 41131 698 15843 7 0 213 2 296 15890 112 15894 79 15867 2181 8992 50
Manitoba    4373 0 2 6 8 0 4373 35 1057 0 2 17 0 0 1057 37 1237 39 1057 299 1237 3
Saskatchewan 4063 0 0 20 20 1 3635 14 1603 3 10 61 6 0 1605 51 1607 59 1605 315 1602 13
Alberta 15889 24 100 33 157 6 14042 151 7073 41 23 110 8 0 7072 93 7068 37 6930 1296 7073 93
Prairies 24325 24 102 59 185 7 22050 200 9733 44 35 188 14 0 9734 181 9912 135 9592 1910 9912 109
British Columbia 18433 43 101 15 229 5 17197 153 4290 16 41 90 19 6 4290 93 4290 74 4173 1104 4173 21
Yukon 45 0 0 0 0 0 49 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 297 0 1 0 1 0 297 10 0 0 0 0 0 0 0 0 0 0 297 130 0 0
Nunavut 545 3 23 0 26 0 545 17 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 887 3 24 0 27 0 891 28 0 0 0 0 0 0 0 0 0 0 297 130 0 0
CANADA 113873 93 436 553 1047 32 102986 2391 37970 158 106 669 44 302 38116 692 38230 602 32341 5902 31095 226

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 16.70 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 2.51 0.03 0.00 2.96 0.77 1.92 0.05 0.02 0.00 0.45 0.05 0.25 4.73 8.18 0.07 2.11 0.63 1.14 4.21 10.01 0.06 3.89 2.64 3.20 1.56 2.54 0.47 2.38 1.47 1.86 1.56 0.15 0.06 0.89 0.15 0.38 12.86 22.16 13.60 32.62 24.54 27.82 1.19 1.07 0.00 1.18 0.20 0.49

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 48 503 243
42 296 110 110 790 69 705 429

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 13369 0.24 0.01 854 0.12 0.00 2619 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 14350 1.00 0.03 818 0.24 0.00 2335 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 15856 1.53 0.01 776 1.68 0.00 3275 0.49 0.00 5630 2.08 0.00 3509 1.03 0.03 2540 1.85 0.00 126 10.32 0.00
42 2022-10-22 16716 2.51 0.05 1001 2.60 0.00 3592 0.86 0.03 5931 3.79 0.08 3624 1.99 0.03 2518 2.58 0.08 50 2.00 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 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 12161 1.05 721 0.97 1852 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 13111 2.48 677 2.95 1723 8.94 5545 1.97 2706 0.63 2319 0.95 141 2.13
41 2022-10-15 14103 3.57 695 3.45 2330 11.12 5630 2.52 3038 1.35 2284 1.53 126 1.59
42 2022-10-22 14908 4.73 799 3.38 2629 13.08 5931 3.74 3200 2.06 2295 1.87 54 5.56

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 3906 3.07 301 5.65 662 3.32 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 5920 3.56 265 5.28 851 4.70 2893 3.11 1312 3.43 599 3.67
42 2022-10-22 7031 4.21 354 3.39 891 4.04 3771 3.58 1331 4.88 684 7.02

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 5934 1.87 265 3.77 863 4.63 2895 0.59 1312 2.13 599 2.67
42 2022-10-22 7042 1.56 354 1.98 902 4.10 3771 0.61 1331 1.80 684 2.78

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 5959 1.64 265 1.89 857 6.07 2895 0.35 1343 1.27 599 2.34
42 2022-10-22 7069 1.56 354 0.85 898 6.79 3777 0.45 1356 1.55 684 1.17

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 5083 16.70 265 24.91 - - 2896 11.33 1294 20.32 579 28.67
42 2022-10-22 6141 12.86 354 21.47 - - 3775 7.58 1309 18.26 655 26.87

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 4854 0.99 265 0.38 842 1.07 1822 0.49 1346 2.01 579 0.35
42 2022-10-22 5818 1.19 354 0.00 871 1.03 2583 0.81 1355 2.58 655 0.61

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