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Respiratory Virus Report, week 38 - ending September 25, 2021

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Organization: Public Health Agency of Canada

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Overall Summary

September 19 to September 25, 2021 (week 38)

Respiratory virus detections continue to increase in Canada

  • Enterovirus/rhinovirus (1,080 detections; 33.8% positive), respiratory syncytial virus (641 detections; 8.6% positive), and human parainfluenza virus (163 detections; 4.8% positive) are the most common seasonal respiratory viruses detected in Canada.
    • Activity of enterovirus/rhinovirus is near average levels for this time of year. Activity is increasing across Canada.
    • Activity of respiratory syncytial virus is above expected levels. The majority of detections are found in Quebec.
    • Activity of human parainfluenza virus is above expected levels.
  • Detections of other respiratory viruses are low.
  • The number of tests performed for all viruses are above expected levels.
  • 32/34 sentinel laboratories reported surveillance data.
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

The Respiratory Virus Detection Surveillance System collects data from select laboratories across Canada on the number of tests performed and the number of tests positive for influenza and other respiratory viruses. Data are reported on a weekly basis year-round to the Centre for Immunization and Respiratory Infectious Diseases (CIRID), Public Health Agency of Canada. These data are also summarized in the weekly FluWatch report.

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

Respiratory virus detections

Table 1: Respiratory virus detections for the week ending September 25, 2021 (surveillance week 2021-38)
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 953 0 0 0 0 0 953 0 953 0 0 5 0 14 953 2 953 0 953 431 N.C. N.C.
Prince Edward Island 63 0 0 0 0 0 63 0 63 0 0 17 0 0 63 2 63 0 63 26 63 0
Nova Scotia 65 0 0 0 0 0 65 0 49 0 0 1 0 0 49 1 49 0 49 11 49 0
New Brunswick 60 0 0 0 0 0 54 0 18 0 0 3 0 0 18 0 18 0 18 2 18 0
Atlantic 1141 0 0 0 0 0 1135 0 1083 0 0 26 0 14 1083 5 1083 0 1083 470 130 0
Région Nord-Est 521 0 0 0 0 0 284 115 0 0 0 0 0 0 0 0 0 0 N.C. N.C. 0 0
Québec-Chaudière-Appalaches 12 0 0 0 0 0 61 3 3 0 0 0 0 0 0 0 0 0 N.C. N.C. 2 0
Centre-du-Québec 103 0 0 0 0 0 144 74 18 0 0 0 0 0 18 0 18 0 N.C. N.C. 18 0
Montréal-Laval   733 0 0 0 0 0 733 299 201 0 0 1 0 0 201 5 201 4 N.C. N.C. 201 0
Ouest du Québec 72 0 0 0 0 0 73 35 0 0 0 0 0 0 0 0 0 0 N.C. N.C. 0 0
Montérégie 61 0 0 0 0 0 61 39 0 0 0 0 0 0 0 0 0 0 N.C. N.C. 0 0
Province of Québec 1502 0 0 0 0 0 1356 565 222 0 0 1 0 0 219 5 219 4 N.C. N.C. 221 0
P.H.O.L. - Ottawa 260 0 0 0 0 0 260 41 260 0 0 0 0 18 260 4 260 3 260 125 260 8
EORLA 127 0 0 0 0 0 127 8 25 0 0 1 0 0 25 0 0 0 7 0 0 0
P.H.O.L. - Kingston 68 0 0 0 0 0 68 4 68 0 0 0 0 20 68 1 68 1 68 29 68 1
UHN / Mount Sinai Hospital 446 0 0 0 0 0 446 1 14 0 0 0 0 0 14 0 14 0 14 1 14 0
P.H.O.L. - Toronto   237 0 0 0 0 0 237 0 237 0 0 0 0 15 237 0 237 2 237 51 237 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.
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 3 5 0
P.H.O.L. - Timmins 12 0 0 0 0 0 12 0 12 0 0 0 0 1 12 0 12 0 12 2 12 0
St. Joseph's - London   41 0 0 0 0 0 41 1 41 0 0 0 0 3 41 0 41 1 41 12 41 0
P.H.O.L. - London 43 0 0 0 0 0 43 1 43 0 0 0 0 2 43 0 43 0 43 11 43 0
P.H.O.L. - Orillia 12 0 0 0 0 0 12 0 12 0 0 0 0 3 12 1 11 0 12 5 11 0
P.H.O.L. - Thunder Bay 7 0 0 0 0 0 7 0 7 0 0 0 0 0 7 0 7 0 7 2 7 0
P.H.O.L. - Sudbury 16 0 0 0 0 0 16 0 16 0 0 0 0 0 16 0 16 0 16 3 16 0
P.H.O.L. - Hamilton 31 0 0 0 0 0 31 0 31 0 0 0 0 2 31 0 31 0 31 14 31 0
P.H.O.L. - Peterborough 9 0 0 0 0 0 9 1 9 0 0 0 0 1 9 0 8 0 9 2 8 0
St. Joseph's - Hamilton 298 0 0 0 0 0 298 7 298 0 0 24 0 0 298 0 298 0 298 78 0 0
Province of Ontario 1612 0 0 0 0 0 1612 64 1078 0 0 25 0 65 1078 6 1051 7 1060 338 753 9
Province of Manitoba    1672 0 0 0 0 0 1672 3 36 0 0 2 0 0 36 0 93 0 36 24 93 0
Province of Saskatchewan 110 0 0 0 0 0 94 0 100 0 0 0 0 0 100 1 100 0 100 29 100 0
Province of Alberta 1692 0 0 0 0 0 633 4 633 0 0 13 1 0 633 3 633 0 633 142 633 8
Prairies 3474 0 0 0 0 0 2399 7 769 0 0 15 1 0 769 4 826 0 769 195 826 8
British Columbia 775 0 0 0 0 0 775 5 279 0 0 15 1 0 279 6 279 2 279 74 279 0
Yukon 199 0 0 0 0 0 199 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 6 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 0 6 3 0 0
Nunavut 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Territories 205 0 0 0 0 0 205 0 0 0 0 0 0 0 0 0 0 0 6 3 0 0
CANADA 8709 0 0 0 0 0 7482 641 3431 0 0 82 2 79 3428 26 3458 13 3197 1080 2209 17

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.

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), Northwest Territories (NT) and Nunavut (NU) are sent to reference laboratories in other provinces and reported results reflect specimens identified as originating from YT, NT or NU.

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.

Influenza co-detections may cause the sum of A(H1)pdm09, A(H3), and A(UnS) positive results to exceed the sum of Total Flu A Positive results.

Table 2: Cumulative respiratory virus detections from August 29, 2021 to September 25, 2021 (surveillance week 2021-35 to 2021-38)
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 2617 0 0 0 0 0 2617 6 2617 0 0 15 0 21 2619 11 2617 0 2617 903 N.C. N.C.
Prince Edward Island 249 0 0 0 0 0 249 0 249 0 0 48 0 0 249 8 249 0 249 90 249 1
Nova Scotia 213 0 0 0 0 0 213 1 178 0 2 8 0 0 178 1 178 0 178 21 178 0
New Brunswick 371 0 0 0 0 0 337 1 250 0 0 11 0 0 243 0 250 0 250 8 250 0
Atlantic 3450 0 0 0 0 0 3416 8 3294 0 2 82 0 21 3289 20 3294 0 3294 1022 677 1
Région Nord-Est 1875 0 0 0 0 0 647 222 3 0 0 0 0 0 3 0 3 0 N.C. N.C. 3 0
Québec-Chaudière-Appalaches 87 0 0 0 0 0 241 41 57 0 0 3 0 0 53 1 53 0 N.C. N.C. 55 0
Centre-du-Québec 218 0 0 0 0 0 278 131 62 0 0 6 0 0 62 0 62 0 N.C. N.C. 55 0
Montréal-Laval   2888 0 0 1 1 0 2892 1242 523 1 0 5 0 0 523 17 523 10 N.C. N.C. 523 0
Ouest du Québec 213 0 0 0 0 0 214 75 3 0 0 0 0 0 0 0 3 0 N.C. N.C. 3 0
Montérégie 156 0 0 0 0 0 156 77 0 0 0 0 0 0 0 0 0 0 N.C. N.C. 0 0
Province of Québec 5437 0 0 1 1 0 4428 1788 648 1 0 14 0 0 641 18 644 10 N.C. N.C. 639 0
P.H.O.L. - Ottawa 1190 0 1 0 1 0 1190 144 1190 0 0 0 0 198 1190 35 1190 7 1190 501 1190 28
EORLA 386 0 0 0 0 0 386 20 86 0 0 3 0 0 86 0 0 0 46 6 25 1
P.H.O.L. - Kingston 182 0 0 0 0 0 182 6 182 0 0 0 0 47 182 4 182 1 182 71 182 1
UHN / Mount Sinai Hospital 1603 0 0 1 1 0 1603 3 64 0 0 0 0 0 64 0 64 0 64 2 64 0
P.H.O.L. - Toronto   712 0 1 0 1 0 711 4 711 0 0 0 0 44 713 2 711 2 711 116 713 0
Sick Kids Hospital - Toronto 103 0 0 0 0 0 0 0 103 0 0 8 0 0 103 1 103 0 103 21 103 0
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 8 0 0 0 0 0 8 0 8 0 0 0 0 0 8 0 8 0 8 3 8 0
P.H.O.L. - Timmins 27 0 0 0 0 0 27 0 27 0 0 0 0 3 27 0 27 0 27 2 27 0
St. Joseph's - London   114 0 0 0 0 0 114 2 115 0 0 7 0 3 115 0 115 1 119 22 119 0
P.H.O.L. - London 129 0 0 0 0 0 129 2 129 0 0 0 0 4 129 0 129 0 129 26 129 0
P.H.O.L. - Orillia 44 0 0 0 0 0 44 1 44 0 0 0 0 4 44 1 43 0 44 19 43 0
P.H.O.L. - Thunder Bay 28 0 0 0 0 0 28 0 28 0 0 0 0 0 28 0 28 0 28 11 28 0
P.H.O.L. - Sudbury 47 0 0 0 0 0 47 0 47 0 0 0 0 0 47 0 47 0 47 10 47 0
P.H.O.L. - Hamilton 76 0 0 0 0 0 76 0 76 0 0 0 0 5 76 1 76 4 76 23 76 0
P.H.O.L. - Peterborough 38 0 0 0 0 0 38 1 38 0 0 0 0 3 38 0 37 0 38 7 37 0
St. Joseph's - Hamilton 997 0 0 0 0 0 991 13 991 0 0 96 0 0 991 4 991 1 991 197 0 0
Province of Ontario 5684 0 2 1 3 0 5574 196 3839 0 0 114 0 311 3841 48 3751 16 3803 1037 2791 30
Manitoba    5660 0 0 0 0 0 5660 7 107 0 0 3 0 0 107 2 326 2 107 48 326 0
Province of Saskatchewan 334 0 0 0 0 0 306 1 311 0 0 1 2 0 311 3 311 0 311 78 310 0
Province of Alberta 7083 0 1 2 3 0 2902 12 2902 0 2 55 8 0 2902 11 2902 1 2902 598 2902 28
Prairies 13077 0 1 2 3 0 8868 20 3320 0 2 59 10 0 3320 16 3539 3 3320 724 3538 28
British Columbia 3715 0 0 1 1 0 3715 20 1299 0 0 43 8 3 1299 14 1299 3 1281 261 1277 4
Yukon 730 0 0 0 0 0 802 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.
Northwest Territories 95 0 0 0 0 0 89 0 15 0 0 0 0 0 15 2 15 0 89 15 15 0
Nunavut 2 0 0 0 0 0 2 0 2 0 0 0 0 0 2 0 2 0 2 0 2 0
Territories 827 0 0 0 0 0 893 2 17 0 0 0 0 0 17 2 17 0 91 15 17 0
CANADA 32190 0 3 5 8 0 26894 2034 12417 1 4 312 18 335 12407 118 12544 32 11789 3059 8939 63

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), Northwest Territories (NT) and Nunavut (NU) are sent to reference laboratories in other provinces and reported results reflect specimens identified as originating from YT, NT or NU.

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

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. Due to these delays, the sum of weekly report totals do not add up to cumulative totals.

Influenza co-detections may cause the sum of A(H1N1)pdm09, A(H3), and A(UnS) positive results to exceed 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 0.02 2.15 0.43 1.16 0.00 0.00 0.21 0.00 0.14 8.57 0.10 1.24 0.37 0.64 4.75 0.07 2.87 1.92 2.33 0.76 0.58 2.04 1.11 1.63 0.38 0.02 1.43 0.06 0.47 33.78 15.67 39.57 32.80 35.33 0.77 0.00 1.36 0.06 0.43

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 6 911 11 628 4
38 163 26 13 1080 17 641 0

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 6896 0.04 0.00 625 0.00 0.00 848 0.12 0.00 1305 0.00 0.00 2848 0.04 0.00 1025 0.10 0.00 245 0.00 0.00
36 2021-09-11 7686 0.01 0.00 675 0.00 0.00 1369 0.00 0.00 1224 0.08 0.00 3301 0.00 0.00 930 0.00 0.00 187 0.00 0.00
37 2021-09-18 8899 0.04 0.00 1009 0.00 0.00 1718 0.00 0.00 1543 0.13 0.00 3454 0.06 0.00 985 0.00 0.00 190 0.00 0.00
38 2021-09-25 8709 0.00 0.00 1141 0.00 0.00 1502 0.00 0.00 1612 0.00 0.00 3474 0.00 0.00 775 0.00 0.00 205 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 5726 4.99 613 0.00 693 37.95 1277 1.49 1874 0.05 1025 0.29 244 0.00
36 2021-09-11 6346 7.55 671 0.60 1069 39.85 1187 3.12 2233 0.22 930 0.54 256 0.78
37 2021-09-18 7340 8.56 997 0.40 1310 40.76 1498 5.07 2362 0.30 985 0.71 188 0.00
38 2021-09-25 7482 8.57 1135 0.00 1356 41.67 1612 3.97 2399 0.29 775 0.65 205 0.00

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 3465 5.97 978 3.89 139 0.72 1099 10.74 857 3.03 386 6.22
38 2021-09-25 3431 4.75 1083 3.69 222 0.45 1078 8.35 769 2.08 279 5.73

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 3468 0.81 980 0.51 138 0.00 1101 1.45 857 0.23 386 1.04
38 2021-09-25 3428 0.76 1083 0.46 219 2.28 1078 0.56 769 0.52 279 2.15

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 3486 0.17 978 0.00 138 1.45 1072 0.19 906 0.11 386 0.26
38 2021-09-25 3458 0.38 1083 0.00 219 1.83 1051 0.67 826 0.00 279 0.72

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 3312 27.51 978 33.44 N.A. N.A. 1081 27.84 857 22.29 378 23.02
38 2021-09-25 3197 33.78 1083 43.40 N.A. N.A. 1060 31.89 769 25.36 279 26.52

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 2476 0.44 247 0.40 131 0.00 809 0.49 905 0.55 378 0.26
38 2021-09-25 2209 0.77 130 0.00 221 0.00 753 1.20 826 0.97 279 0.00

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