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Respiratory Virus Report, week 41 - ending October 15, 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 is increasing in Canada, but is within expected levels for most viruses.

  • Enterovirus/Rhinovirus remains the most common seasonal respiratory virus detected in Canada (808 detections; 16.6% positive), but activity has decreased and remains far below expected levels for this time of year.
  • Overall activity of influenza A and respiratory syncytial virus is low, but has increased in recent weeks.
    • Influenza A activity (238 detections; 1.6% positive) is within expected levels for this time of year.
    • Respiratory syncytial virus activity (486 detections; 3.5% positive) is above expected levels for this time of year.
  • Activity of other respiratory viruses is low and stable.
  • 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 15, 2022 (surveillance week 2022-41)
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 141 0 0 0 0 0 141 9 141 0 1 1 0 0 141 0 141 3 141 21 141 0
Prince Edward Island 33 0 0 0 0 0 33 0 33 0 1 1 0 0 33 3 33 2 33 15 33 0
Nova Scotia 225 0 2 5 7 0 225 9 52 0 2 3 0 0 52 2 52 0 52 15 52 1
New Brunswick 377 0 0 6 6 0 296 6 39 0 2 3 0 0 39 5 39 0 39 15 39 0
Atlantic 776 0 2 11 13 0 695 24 265 0 6 8 0 0 265 10 265 5 265 66 265 1
Région Nord-Est 478 0 0 0 0 0 104 5 4 0 0 0 0 0 4 0 4 0 N.C. N.C. 4 0
Québec-Chaudière-Appalaches 494 0 0 1 1 0 501 46 31 2 1 1 0 0 290 13 290 11 N.C. N.C. 174 1
Centre-du-Québec 387 0 0 4 4 6 345 46 167 0 0 0 0 0 167 0 167 2 N.C. N.C. 167 0
Montréal-Laval 979 0 0 9 9 0 894 93 412 11 0 8 0 0 412 21 412 38 N.C. N.C. 484 0
Ouest du Québec 269 0 0 1 1 0 269 46 9 1 0 0 0 0 9 2 9 1 N.C. N.C. 9 0
Montérégie 405 0 0 3 3 1 405 42 0 0 0 0 0 0 0 0 0 0 N.C. N.C. 0 0
Province of Québec  3012 0 0 18 18 7 2518 278 623 14 1 9 0 0 882 36 882 52 N.C. N.C. 838 1
P.H.O.L. - Ottawa 47 0 1 0 1 0 47 1 47 0 0 0 0 2 47 0 47 0 47 10 47 0
EORLA 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. - Kingston 81 0 0 0 0 0 81 2 81 0 0 0 0 4 81 2 81 1 81 12 81 1
UHN / Mount Sinai Hospital 505 0 1 4 5 0 505 3 27 0 0 0 0 0 27 0 27 0 27 2 27 0
P.H.O.L. - Toronto 361 5 25 0 6 0 361 3 361 0 0 0 0 13 361 6 361 3 361 52 361 0
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 2852 1 8 34 43 0 2852 51 850 0 0 2 0 13 852 3 852 1 853 27 836 2
P.H.O.L. - Sault Ste. Marie 2 0 0 0 0 0 2 0 2 0 0 0 0 0 2 0 2 0 2 0 2 0
P.H.O.L. - Timmins 6 0 0 0 0 0 6 0 6 0 0 0 0 2 6 0 6 0 6 1 6 0
St. Joseph's - London 75 0 0 0 0 0 75 3 75 0 0 0 0 1 75 2 75 0 75 13 5 0
P.H.O.L. - London 176 0 1 0 1 0 176 8 176 0 0 0 0 6 176 0 176 0 176 25 176 1
P.H.O.L. - Orillia 70 0 3 0 3 0 70 2 70 0 0 0 0 6 70 1 70 1 70 13 70 2
P.H.O.L. - Thunder Bay 10 0 1 0 1 0 10 0 10 0 0 0 0 0 10 0 10 0 10 4 10 0
P.H.O.L. - Sudbury 2 0 0 0 0 0 2 0 2 0 0 0 0 0 2 0 2 0 2 0 2 0
P.H.O.L. - Hamilton 122 0 1 0 1 0 122 4 122 0 0 0 0 4 122 2 122 1 122 21 122 0
P.H.O.L. - Peterborough 36 0 3 0 3 0 36 0 36 0 0 0 0 2 36 0 36 0 36 9 36 2
St. Joseph's - Hamilton 987 0 0 53 53 0 987 35 987 0 0 33 0 0 987 1 987 2 987 128 0 0
Province of Ontario 5332 6 44 91 117 0 5332 112 2852 0 0 35 0 53 2854 17 2854 9 2855 317 1781 8
Manitoba 656 0 0 3 3 0 656 7 147 0 0 1 0 0 147 5 181 6 147 46 181 0
Saskatchewan 559 0 0 2 2 1 409 2 209 0 2 9 1 0 209 4 209 5 209 56 209 1
Alberta 2125 4 18 5 27 0 1863 29 901 8 4 17 0 0 901 18 898 6 887 153 901 24
Prairies 3340 4 18 10 32 1 2928 38 1257 8 6 27 1 0 1257 27 1288 17 1243 255 1291 25
British Columbia 2539 4 10 2 45 0 2283 32 470 3 7 7 1 0 470 14 470 10 450 144 450 2
Yukon 5 0 0 0 0 0 5 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 49 0 0 0 0 0 49 1 0 0 0 0 0 0 0 0 0 0 49 26 0 0
Nunavut 71 0 13 0 13 0 71 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 125 0 13 0 13 0 125 2 0 0 0 0 0 0 0 0 0 0 49 26 0 0
CANADA 15124 14 87 132 238 8 13881 486 5467 25 20 86 2 53 5728 104 5759 93 4862 808 4625 37

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 15, 2022 (surveillance week 2021-41)
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 1154 0 1 0 1 0 1154 36 1154 2 3 8 3 0 1154 12 1154 32 1154 162 1154 0
Prince Edward Island 263 0 0 0 0 0 263 5 263 0 3 12 0 0 263 20 263 3 263 147 263 1
Nova Scotia 1726 0 2 9 11 1 1725 33 306 0 3 4 1 0 306 11 306 0 306 81 306 1
New Brunswick 2619 0 1 7 8 1 1831 19 335 0 4 21 1 0 335 33 335 1 335 111 335 7
Atlantic 5762 0 4 16 20 2 4973 93 2058 2 13 45 5 0 2058 76 2058 36 2058 501 2058 9
Région Nord-Est 4093 0 0 2 2 1 942 24 37 1 1 0 0 0 36 2 36 0 N.C. N.C. 27 1
Québec-Chaudière-Appalaches 2860 0 0 5 5 1 2790 137 224 5 3 7 1 0 1776 36 1764 46 N.C. N.C. 985 6
Centre-du-Québec 1929 0 0 6 6 8 1729 116 623 4 0 2 0 0 623 8 623 15 N.C. N.C. 623 1
Montréal-Laval 5892 0 0 21 21 4 5526 344 2684 34 5 30 1 0 2684 91 2684 147 N.C. N.C. 2722 6
Ouest du Québec 1755 0 0 5 5 0 1679 141 111 3 0 2 1 0 120 13 111 4 N.C. N.C. 111 3
Montérégie 2743 0 0 7 7 2 2526 156 0 0 0 0 0 0 0 0 0 0 N.C. N.C. 0 0
Province of Québec  19272 0 0 46 46 16 15192 918 3679 47 9 41 3 0 5239 150 5218 212 N.C. N.C. 4468 17
P.H.O.L. - Ottawa 257 0 1 0 1 0 257 2 257 0 0 0 0 3 257 0 257 3 257 27 257 0
EORLA 1149 0 0 5 5 0 1149 30 198 3 0 3 1 0 198 5 198 4 198 74 198 1
P.H.O.L. - Kingston 321 0 0 0 0 0 321 11 321 0 0 0 0 10 321 8 321 2 321 64 321 1
UHN / Mount Sinai Hospital 3016 0 1 16 17 1 3016 13 108 0 0 0 0 0 108 1 108 0 108 3 108 5
P.H.O.L. - Toronto 2048 18 82 1 21 0 2047 22 2047 0 0 0 0 93 2048 30 2045 15 2047 321 2045 8
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 20425 1 8 108 117 0 20425 164 1674 3 0 13 0 18 1685 10 1686 1 1660 88 1542 3
P.H.O.L. - Sault Ste. Marie 36 0 0 0 0 0 36 0 36 0 0 0 0 0 36 0 36 0 36 6 36 0
P.H.O.L. - Timmins 62 0 0 0 0 0 62 0 62 0 0 0 0 2 62 0 62 0 62 19 62 1
St. Joseph's - London 406 0 0 0 0 0 406 13 372 0 0 0 0 7 406 7 406 0 406 85 30 0
P.H.O.L. - London 714 1 6 0 7 0 714 18 714 0 0 0 0 25 714 11 714 2 714 144 714 3
P.H.O.L. - Orillia 240 0 4 1 5 0 240 5 240 0 0 0 0 16 240 4 240 5 240 69 240 2
P.H.O.L. - Thunder Bay 59 0 1 0 1 0 59 0 59 0 0 0 0 1 59 1 59 0 59 29 59 1
P.H.O.L. - Sudbury 45 0 0 0 0 0 45 0 45 0 0 0 0 2 45 1 45 0 45 8 45 0
P.H.O.L. - Hamilton 518 0 3 0 3 2 518 17 518 0 0 0 0 21 518 6 518 2 518 97 518 1
P.H.O.L. - Peterborough 153 0 3 0 3 0 153 7 153 0 0 0 0 10 153 3 153 1 153 54 153 2
St. Joseph's - Hamilton 5188 0 0 76 76 3 5188 127 5188 0 0 149 0 0 5188 1 5188 26 5188 785 0 0
Province of Ontario 34637 20 109 207 256 6 34636 429 11992 6 0 165 1 208 12038 88 12036 61 12012 1873 6328 28
Manitoba 3641 0 0 5 5 0 3641 24 1492 0 2 10 0 0 1492 32 1063 31 1492 247 1063 2
Saskatchewan 3362 0 0 5 5 1 3106 8 1366 1 7 45 6 0 1368 43 1370 48 1368 254 1366 6
Alberta 13488 21 62 16 99 5 11953 96 6073 24 19 92 7 0 6072 81 6068 35 5956 1154 6073 64
Prairies 20491 21 62 26 109 6 18700 128 8931 25 28 147 13 0 8932 156 8501 114 8816 1655 8502 72
British Columbia 15914 34 66 6 162 3 14901 107 3477 8 31 57 18 6 3477 72 3477 62 3389 906 3389 17
Yukon 42 0 0 0 0 0 42 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 249 0 0 0 0 0 249 8 0 0 0 0 0 0 0 0 0 0 249 117 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 836 3 23 0 26 0 836 25 0 0 0 0 0 0 0 0 0 0 249 117 0 0
CANADA 96912 78 264 301 619 33 89238 1700 30137 88 81 455 40 214 31744 542 31290 485 26524 5052 24745 143

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 0.18 0.04 0.00 1.60 0.11 0.68 0.02 0.00 0.02 0.28 0.00 0.13 1.12 4.43 0.02 1.34 0.38 0.60 2.80 5.99 0.08 3.16 1.15 2.42 2.41 1.18 0.27 1.74 0.99 1.43 1.98 0.23 0.17 2.04 0.10 0.77 15.54 21.96 9.07 27.19 22.44 24.78 0.57 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 0.05 0.00 0.00 0.55 0.00 0.15 1.22 6.61 0.04 1.09 0.22 0.57 3.08 4.93 0.20 3.31 1.35 2.32 1.91 1.15 0.40 2.85 1.42 1.87 1.89 0.24 0.06 0.84 0.10 0.48 16.16 18.59 8.13 30.69 23.30 26.31 0.40 0.62 0.00 0.38 0.12 0.22
37 2022-09-17 0.23 0.03 0.00 1.59 0.36 0.87 0.02 0.00 0.00 0.19 0.04 0.12 1.01 7.59 0.02 1.37 0.31 0.64 2.94 5.97 0.13 3.26 1.65 2.40 1.86 0.81 0.35 2.44 1.38 1.86 1.46 0.17 0.05 1.61 0.00 0.51 21.87 27.46 8.07 33.58 27.74 31.68 0.26 0.44 0.05 0.56 0.00 0.26
38 2022-09-24 0.50 0.00 0.02 2.15 0.43 1.16 0.02 0.00 0.00 0.21 0.00 0.14 1.39 7.16 0.10 1.24 0.37 0.64 2.43 4.73 0.07 2.87 1.92 2.33 1.20 0.82 0.58 2.04 1.11 1.63 1.35 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 0.68 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 2.80 8.12 0.02 3.01 1.70 2.24 1.80 1.14 0.19 2.27 1.04 1.66 1.25 0.17 0.04 0.72 0.05 0.28 22.79 30.01 24.12 40.59 34.87 37.68 0.55 0.62 0.05 0.66 0.07 0.45
40 2022-10-08 0.97 0.00 0.00 2.17 1.01 1.58 0.04 0.02 0.00 0.20 0.05 0.11 2.51 8.53 0.07 1.39 0.34 0.67 2.88 8.19 0.02 3.28 1.90 2.43 1.28 1.31 0.44 2.25 1.39 1.82 1.55 0.16 0.00 0.92 0.05 0.34 16.66 26.26 16.62 41.29 33.00 35.43 0.91 0.57 0.09 1.08 0.22 0.58
41 2022-10-15 1.57 0.03 0.01 2.66 1.05 1.57 0.05 0.03 0.00 0.36 0.03 0.16 3.50 9.54 0.10 1.74 0.58 0.98 3.40 10.46 0.06 3.70 1.94 2.74 1.82 1.37 0.37 1.91 1.28 1.70 1.61 0.20 0.19 0.95 0.04 0.46 16.62 22.91 15.48 33.62 26.94 29.81 0.80 1.69 0.02 0.70 0.00 0.33

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 88 81 67 436 15 130 26
36 99 66 65 448 11 141 24
37 109 72 57 715 8 123 34
38 105 54 61 885 11 180 72
39 132 89 62 932 22 294 102
40 156 73 79 796 37 339 149
41 186 104 93 808 37 486 246

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 12704 0.18 0.02 932 0.11 0.11 2457 0.20 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 12537 0.14 0.05 906 0.00 0.00 2558 0.12 0.04 4367 0.16 0.02 2565 0.16 0.08 2055 0.19 0.10 86 0.00 0.00
37 2022-09-17 13426 0.23 0.02 854 0.12 0.00 2676 0.15 0.07 4729 0.32 0.02 2798 0.18 0.00 2247 0.22 0.00 122 0.82 0.00
38 2022-09-24 13897 0.50 0.02 788 0.13 0.00 2554 0.23 0.04 5153 0.39 0.00 3042 0.43 0.03 2226 1.21 0.04 134 1.49 0.00
39 2022-10-01 14367 0.68 0.03 688 0.29 0.15 2866 0.10 0.07 5156 0.72 0.02 3133 0.64 0.00 2411 1.33 0.00 113 3.54 0.00
40 2022-10-08 14697 0.97 0.04 818 0.24 0.00 3149 0.22 0.06 5214 1.07 0.06 2947 0.92 0.03 2428 1.85 0.00 141 4.26 0.00
41 2022-10-15 15124 1.57 0.05 776 1.68 0.00 3012 0.60 0.23 5332 2.19 0.00 3340 0.96 0.03 2539 1.77 0.00 125 10.40 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 11600 1.12 832 1.44 1870 3.26 4621 0.50 2367 0.68 1795 0.50 115 7.83
36 2022-09-10 11598 1.22 785 0.64 2031 2.95 4367 1.01 2414 0.54 1915 0.73 86 5.81
37 2022-09-17 12152 1.01 721 0.97 1843 3.26 4729 0.61 2610 0.61 2127 0.38 122 2.46
38 2022-09-24 12912 1.39 707 1.13 1948 5.13 5153 1.03 2820 0.35 2150 0.33 134 1.49
39 2022-10-01 13434 2.19 556 3.06 2403 6.82 5155 1.47 2895 0.73 2312 0.65 113 0.88
40 2022-10-08 13520 2.51 677 2.95 2579 7.56 5214 1.67 2592 0.42 2317 0.99 141 2.13
41 2022-10-15 13881 3.50 695 3.45 2518 11.04 5332 2.10 2928 1.30 2283 1.40 125 1.60

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 3142 2.80 294 0.34 368 2.45 1111 3.33 967 2.69 402 3.73
36 2022-09-10 3210 3.08 280 5.36 446 2.91 1037 3.09 1025 2.44 422 3.32
37 2022-09-17 3702 2.94 301 5.65 458 2.40 1300 3.54 1112 2.07 530 2.26
38 2022-09-24 4314 2.43 334 1.80 510 2.94 1649 2.61 1274 1.73 547 3.47
39 2022-10-01 4710 2.80 286 1.75 620 2.58 1939 3.71 1327 1.81 538 2.79
40 2022-10-08 5420 2.88 298 2.35 654 1.83 2039 2.99 1941 2.52 488 5.53
41 2022-10-15 5467 3.40 265 5.28 623 3.85 2852 3.09 1257 3.34 470 3.83

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 3360 2.41 294 6.12 560 3.57 1139 0.61 965 2.69 402 2.49
36 2022-09-10 3461 1.91 280 3.57 686 2.19 1045 0.67 1028 2.43 422 2.13
37 2022-09-17 3862 1.86 301 4.65 618 2.59 1301 1.00 1111 1.35 530 2.64
38 2022-09-24 4515 1.20 334 1.20 710 2.25 1649 0.49 1275 1.41 547 1.46
39 2022-10-01 4951 1.80 286 2.80 859 2.33 1941 0.98 1327 2.11 538 2.60
40 2022-10-08 5695 1.28 298 4.03 924 2.92 2044 0.68 1941 0.88 488 0.61
41 2022-10-15 5728 1.82 265 3.77 882 4.08 2854 0.60 1257 2.15 470 2.98

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 3382 1.98 294 2.38 549 4.01 1139 0.97 998 1.90 402 1.99
36 2022-09-10 3442 1.89 280 1.79 646 3.72 1045 0.96 1049 1.72 422 1.90
37 2022-09-17 3909 1.46 301 2.66 650 3.85 1300 0.46 1127 0.80 530 1.70
38 2022-09-24 4522 1.35 334 0.90 710 3.38 1646 0.49 1285 1.48 547 1.28
39 2022-10-01 4965 1.25 286 1.75 859 2.91 1941 0.46 1341 1.04 538 1.67
40 2022-10-08 5101 1.55 298 1.01 922 4.34 2046 0.39 1347 1.26 488 2.25
41 2022-10-15 5759 1.61 265 1.89 882 5.90 2854 0.32 1288 1.32 470 2.13

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 4777 16.66 298 20.47 - - 2046 15.30 1922 13.16 467 32.12
41 2022-10-15 4862 16.62 265 24.91 - - 2855 11.10 1243 20.51 450 32.00

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 2633 0.57 294 0.68 465 0.86 483 0.62 997 0.20 394 1.02
36 2022-09-10 2765 0.40 280 0.71 571 0.18 451 0.22 1046 0.67 417 0.00
37 2022-09-17 3121 0.26 301 0.00 579 0.17 590 0.51 1128 0.35 522 0.00
38 2022-09-24 3382 0.33 334 0.00 439 0.68 785 0.25 1286 0.47 538 0.00
39 2022-10-01 4023 0.55 286 0.35 765 0.52 1110 0.36 1341 0.75 521 0.58
40 2022-10-08 4048 0.91 298 1.01 811 0.37 1125 0.62 1347 1.26 467 1.50
41 2022-10-15 4625 0.80 265 0.38 838 0.12 1781 0.45 1291 1.94 450 0.44

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