Respiratory Virus Report, Week 40 - ending October 8, 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 detections remain low in Canada, but have increased in recent weeks. Activity of nearly all viruses is within expected levels.

  • Enterovirus/Rhinovirus remains the most common seasonal respiratory virus detected in Canada (796 detections; 16.7% positive). Activity continues to decrease and remains far below expected levels for this time of year.
  • Detections of other respiratory viruses are low, but activity is near expected levels.  
    • Detections of respiratory syncytial virus have increased in recent weeks (339 detections; 2.5% positive), but activity remains low.
  • 31/34 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 8, 2022 (surveillance week 2022-40)
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 172 0 0 0 0 0 172 5 172 0 0 1 0 0 172 3 172 3 172 27 172 0
Prince Edward Island 37 0 0 0 0 0 37 2 37 0 0 2 0 0 37 6 37 0 37 13 37 0
Nova Scotia 188 0 0 0 0 0 188 11 47 0 1 0 0 0 47 1 47 0 47 12 47 0
New Brunswick 421 0 1 1 2 0 280 2 42 0 0 3 0 0 42 2 42 0 42 9 42 3
Atlantic 818 0 1 1 2 0 677 20 298 0 1 6 0 0 298 12 298 3 298 61 298 3
Région Nord-Est 614 0 0 0 0 1 144 4 8 0 0 0 0 0 8 0 8 0 N.C. N.C. 2 0
Québec-Chaudière-Appalaches 505 0 0 1 1 0 505 22 32 1 0 0 0 0 302 4 300 10 N.C. N.C. 165 0
Centre-du-Québec 363 0 0 1 1 0 316 27 149 1 0 1 0 0 149 3 149 4 N.C. N.C. 149 1
Montréal-Laval 1021 0 0 3 3 1 968 71 446 3 0 4 0 0 446 19 446 24 N.C. N.C. 476 1
Ouest du Québec 255 0 0 1 1 0 255 36 19 1 0 0 1 0 19 1 19 2 N.C. N.C. 19 1
Montérégie 391 0 0 1 1 0 391 35 0 0 0 0 0 0 0 0 0 0 N.C. N.C. 0 0
Province of Québec 3149 0 0 7 7 2 2579 195 654 6 0 5 1 0 924 27 922 40 N.C. N.C. 811 3
P.H.O.L. - Ottawa 60 0 0 0 0 0 60 0 60 0 0 0 0 0 60 0 60 1 60 5 60 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 50 0 0 0 0 0 50 3 50 0 0 0 0 2 50 2 50 1 50 7 50 0
UHN / Mount Sinai Hospital 554 0 0 4 4 0 554 3 29 0 0 0 0 0 29 1 29 0 29 0 29 3
P.H.O.L. - Toronto 328 1 14 0 4 0 328 8 328 0 0 0 0 11 328 3 328 2 328 51 328 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.
Shared Hospital Laboratory 2944 0 0 28 28 0 2944 40 294 0 0 5 0 2 299 2 301 0 301 23 281 0
P.H.O.L. - Sault Ste. Marie 9 0 0 0 0 0 9 0 9 0 0 0 0 0 9 0 9 0 9 5 9 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 3 8 0
St. Joseph's - London 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. - London 145 1 1 0 2 0 145 0 145 0 0 0 0 6 145 2 145 0 145 30 145 0
P.H.O.L. - Orillia 64 0 0 0 0 0 64 0 64 0 0 0 0 4 64 1 64 0 64 8 64 0
P.H.O.L. - Thunder Bay 6 0 0 0 0 0 6 0 6 0 0 0 0 0 6 1 6 0 6 3 6 0
P.H.O.L. - Sudbury 6 0 0 0 0 0 6 0 6 0 0 0 0 1 6 1 6 0 6 1 6 0
P.H.O.L. - Hamilton 103 0 1 0 1 2 103 5 103 0 0 0 0 0 103 0 103 1 103 16 103 1
P.H.O.L. - Peterborough 36 0 0 0 0 0 36 1 36 0 0 0 0 3 36 1 36 0 36 13 36 0
St. Joseph's - Hamilton 901 0 0 17 17 1 901 27 901 0 0 27 0 0 901 0 901 3 901 148 0 0
Province of Ontario 5214 2 16 49 56 3 5214 87 2039 0 0 32 0 29 2044 14 2046 8 2046 313 1125 7
Manitoba 342 0 0 0 0 0 342 3 722 0 0 1 0 0 722 5 128 2 722 24 128 1
Saskatchewan 483 0 0 0 0 0 394 0 225 1 2 11 0 0 225 3 225 7 225 57 225 1
Alberta 2122 4 21 2 27 1 1856 8 994 5 7 20 2 0 994 9 994 8 975 172 994 15
Prairies 2947 4 21 2 27 1 2592 11 1941 6 9 32 2 0 1941 17 1347 17 1922 253 1347 17
British Columbia 2428 2 12 1 45 0 2317 23 488 2 10 11 3 1 488 3 488 11 467 150 467 7
Yukon 4 0 0 0 0 0 4 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 44 0 0 0 0 0 44 1 0 0 0 0 0 0 0 0 0 0 44 19 0 0
Nunavut 93 0 6 0 6 0 93 2 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 141 0 6 0 6 0 141 3 0 0 0 0 0 0 0 0 0 0 44 19 0 0
CANADA 14697 8 56 60 143 6 13520 339 5420 14 20 86 6 30 5695 73 5101 79 4777 796 4048 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 8, 2022 (surveillance week 2021-40)
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 1013 0 1 0 1 0 1013 27 1013 2 2 7 3 0 1013 12 1013 29 1013 141 1013 0
Prince Edward Island 230 0 0 0 0 0 230 5 230 0 2 11 0 0 230 17 230 1 230 132 230 1
Nova Scotia 1501 0 0 4 4 1 1500 24 254 0 1 1 1 0 254 9 254 0 254 66 254 0
New Brunswick 2242 0 1 1 2 1 1535 13 296 0 2 18 1 0 296 28 296 1 296 96 296 7
Atlantic 4986 0 2 5 7 2 4278 69 1793 2 7 37 5 0 1793 66 1793 31 1793 435 1793 8
Région Nord-Est 3615 0 0 2 2 1 838 19 33 1 1 0 0 0 32 2 32 0 N.C. N.C. 23 1
Québec-Chaudière-Appalaches 2366 0 0 4 4 1 2289 91 193 3 2 6 1 0 1486 23 1474 35 N.C. N.C. 811 5
Centre-du-Québec 1542 0 0 2 2 2 1384 70 456 4 0 2 0 0 456 8 456 13 N.C. N.C. 456 1
Montréal-Laval 4913 0 0 12 12 4 4632 251 2272 23 5 22 1 0 2272 70 2272 109 N.C. N.C. 2238 6
Ouest du Québec 1486 0 0 4 4 0 1410 95 102 2 0 2 1 0 111 11 102 3 N.C. N.C. 102 3
Montérégie 2338 0 0 4 4 1 2121 114 0 0 0 0 0 0 0 0 0 0 N.C. N.C. 0 0
Province of Québec 16260 0 0 28 28 9 12674 640 3056 33 8 32 3 0 4357 114 4336 160 N.C. N.C. 3630 16
P.H.O.L. - Ottawa 210 0 0 0 0 0 210 1 210 0 0 0 0 1 210 0 210 3 210 17 210 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 240 0 0 0 0 0 240 9 240 0 0 0 0 6 240 6 240 1 240 52 240 0
UHN / Mount Sinai Hospital 2511 0 0 12 12 1 2511 10 81 0 0 0 0 0 81 1 81 0 81 1 81 5
P.H.O.L. - Toronto 1688 13 58 1 16 0 1687 19 1687 0 0 0 0 80 1688 24 1685 12 1687 269 1685 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 17573 0 0 74 74 0 17573 113 824 3 0 11 0 5 833 7 834 0 807 61 706 1
P.H.O.L. - Sault Ste. Marie 34 0 0 0 0 0 34 0 34 0 0 0 0 0 34 0 34 0 34 6 34 0
P.H.O.L. - Timmins 56 0 0 0 0 0 56 0 56 0 0 0 0 0 56 0 56 0 56 18 56 1
St. Joseph's - London 265 0 0 0 0 0 265 5 231 0 0 0 0 5 265 2 265 0 265 61 21 0
P.H.O.L. - London 538 1 5 0 6 0 538 10 538 0 0 0 0 19 538 11 538 2 538 119 538 2
P.H.O.L. - Orillia 170 0 1 1 2 0 170 3 170 0 0 0 0 10 170 3 170 4 170 56 170 0
P.H.O.L. - Thunder Bay 49 0 0 0 0 0 49 0 49 0 0 0 0 1 49 1 49 0 49 25 49 1
P.H.O.L. - Sudbury 43 0 0 0 0 0 43 0 43 0 0 0 0 2 43 1 43 0 43 8 43 0
P.H.O.L. - Hamilton 396 0 2 0 2 2 396 13 396 0 0 0 0 17 396 4 396 1 396 76 396 1
P.H.O.L. - Peterborough 117 0 0 0 0 0 117 7 117 0 0 0 0 8 117 3 117 1 117 45 117 0
St. Joseph's - Hamilton 4201 0 0 23 23 3 4201 92 4201 0 0 116 0 0 4201 0 4201 24 4201 657 0 0
Province of Ontario 29240 14 66 116 140 6 29239 312 9075 6 0 130 1 154 9119 68 9117 52 9092 1545 4544 20
Manitoba 2985 0 0 2 2 0 2985 17 1345 0 2 9 0 0 1345 27 844 25 1345 201 844 2
Saskatchewan 2741 0 0 3 3 0 2651 5 1157 1 5 36 5 0 1159 39 1161 43 1159 198 1157 5
Alberta 11332 17 44 11 72 5 10062 65 5144 16 15 73 7 0 5143 63 5142 28 5043 992 5144 39
Prairies 17058 17 44 16 77 5 15698 87 7646 17 22 118 12 0 7647 129 7147 96 7547 1391 7145 46
British Columbia 13373 22 45 2 117 3 12616 76 2928 5 24 50 17 6 2928 58 2928 52 2860 750 2860 14
Yukon 37 0 0 0 0 0 37 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 200 0 0 0 0 0 200 7 0 0 0 0 0 0 0 0 0 0 200 91 0 0
Nunavut 474 3 10 0 13 0 474 16 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 711 3 10 0 13 0 711 23 0 0 0 0 0 0 0 0 0 0 200 91 0 0
CANADA 81628 56 167 167 382 25 75216 1207 24498 63 61 367 38 160 25844 435 25321 391 21492 4212 19972 104

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

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

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

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

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

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

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

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

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

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