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Respiratory Virus Report, week 39 - ending October 2, 2021

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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

September 26 to October 2, 2021 (week 39)

Respiratory virus detections continue to increase in Canada

  • Enterovirus/rhinovirus (1,104 detections; 31.2% positive), respiratory syncytial virus (769 detections; 10.0% positive), and human parainfluenza virus (319 detections; 8.5% positive) are the most common seasonal respiratory viruses detected in Canada.
    • Activity of enterovirus/rhinovirus is near expected levels for this time of year.
    • 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.
  • 31/34 sentinel laboratories reported surveillance data.

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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

Respiratory virus detections

Table 1: Respiratory virus detections for the week ending October 2, 2021 (surveillance week 2021-39)
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 859 0 0 0 0 0 859 1 859 0 3 9 0 17 860 1 859 0 859 324 N.C. N.C.
Prince Edward Island 69 0 0 0 0 0 69 0 69 0 0 19 0 0 69 1 69 0 69 19 69 0
Nova Scotia 59 0 0 0 0 0 59 0 51 0 0 4 0 0 51 1 51 0 51 5 51 0
New Brunswick 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Atlantic 987 0 0 0 0 0 987 1 979 0 3 32 0 17 980 3 979 0 979 348 120 0
Région Nord-Est 215 0 0 0 0 0 162 97 3 0 0 0 0 0 3 0 3 0 N.C. N.C. 3 0
Québec-Chaudière-Appalaches 7 0 0 0 0 0 7 4 0 0 0 0 0 0 0 0 0 0 N.C. N.C. 0 0
Centre-du-Québec 112 0 0 0 0 0 181 104 21 0 0 2 0 0 21 1 21 0 N.C. N.C. 21 0
Montréal-Laval   417 0 0 0 0 0 416 207 208 0 0 2 0 0 208 7 208 2 N.C. N.C. 208 1
Ouest du Québec 240 0 0 0 0 0 240 117 0 0 0 0 0 0 0 0 0 0 N.C. N.C. 0 0
Montérégie 98 0 0 0 0 0 98 62 0 0 0 0 0 0 0 0 0 0 N.C. N.C. 0 0
Province of Québec  1089 0 0 0 0 0 1104 591 232 0 0 4 0 0 232 8 232 2 N.C. N.C. 232 1
P.H.O.L. - Ottawa 501 0 0 0 0 0 501 99 501 0 0 0 0 65 501 14 500 3 501 239 500 4
EORLA 112 0 0 0 0 0 112 12 31 0 0 1 0 0 31 0 0 0 31 7 0 0
P.H.O.L. - Kingston 56 0 0 0 0 0 56 2 56 0 0 0 0 15 56 0 55 0 56 32 55 0
UHN / Mount Sinai Hospital 429 0 0 0 0 0 429 1 18 0 0 0 0 0 18 0 18 0 18 1 18 0
P.H.O.L. - Toronto   239 0 0 0 0 0 239 4 239 0 0 0 0 25 239 0 239 0 239 42 239 0
Sick Kids Hospital - Toronto 40 0 0 0 0 0 0 0 40 0 0 6 0 0 40 0 40 0 40 15 40 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 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. - Timmins 11 0 0 0 0 0 11 2 11 0 0 0 0 0 11 0 11 0 11 2 11 0
St. Joseph's - London   46 0 0 0 0 0 46 2 46 0 0 0 0 7 46 1 46 0 46 11 46 0
P.H.O.L. - London 56 0 0 0 0 0 56 0 56 0 0 0 0 8 56 2 56 0 56 23 56 0
P.H.O.L. - Orillia 8 0 0 0 0 0 8 0 8 0 0 0 0 1 8 0 8 0 8 2 8 0
P.H.O.L. - Thunder Bay 5 0 0 0 0 0 5 0 5 0 0 0 0 0 5 0 5 0 5 0 5 0
P.H.O.L. - Sudbury 25 0 0 0 0 0 25 0 25 0 0 0 0 0 25 0 25 0 25 7 25 0
P.H.O.L. - Hamilton 33 0 0 0 0 0 32 1 32 0 0 0 0 1 32 0 32 0 32 8 32 0
P.H.O.L. - Peterborough 7 0 0 0 0 0 7 0 7 0 0 0 0 0 7 0 7 0 7 0 7 0
St. Joseph's - Hamilton 386 0 0 0 0 0 386 19 386 0 0 62 0 0 386 3 386 0 386 85 0 0
Province of Ontario 1954 0 0 0 0 0 1913 142 1461 0 0 69 0 122 1461 20 1428 3 1461 474 1042 4
Province of Manitoba    1650 1 0 0 1 0 1650 4 29 0 0 1 0 0 29 0 73 0 29 7 73 1
Province of Saskatchewan 92 0 0 0 0 0 92 0 101 0 0 10 0 0 101 2 101 0 101 25 101 0
Province of Alberta 1656 0 0 0 0 0 586 7 586 0 1 29 2 0 586 6 586 0 586 125 586 10
Prairies 3398 1 0 0 1 0 2328 11 716 0 1 40 2 0 716 8 760 0 716 157 760 11
British Columbia 1338 0 0 0 0 0 1165 24 377 0 0 28 1 0 377 5 377 0 373 123 373 0
Yukon 165 0 0 0 0 0 165 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 11 0 0 0 0 0 10 0 3 0 0 0 0 0 3 0 3 0 10 1 3 0
Nunavut 1 0 0 0 0 0 1 0 1 0 0 0 0 0 1 0 1 0 1 1 1 0
Territories 177 0 0 0 0 0 176 0 4 0 0 0 0 0 4 0 4 0 11 2 4 0
CANADA 8943 1 0 0 1 0 7673 769 3769 0 4 173 3 139 3770 44 3780 5 3540 1104 2531 16

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 October 2, 2021 (surveillance weeks 2021-35 to 2021-39)
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 3476 0 0 0 0 0 3476 7 3476 0 3 24 0 38 3479 12 3476 0 3476 1227 N.C. N.C.
Prince Edward Island 318 0 0 0 0 0 318 0 318 0 0 67 0 0 318 9 318 0 318 109 318 1
Nova Scotia 272 0 0 0 0 0 272 1 229 0 2 12 0 0 229 2 229 0 229 26 229 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 4437 0 0 0 0 0 4403 9 4273 0 5 114 0 38 4269 23 4273 0 4273 1370 797 1
Région Nord-Est 2090 0 0 0 0 0 809 319 6 0 0 0 0 0 6 0 6 0 N.C. N.C. 6 0
Québec-Chaudière-Appalaches 94 0 0 0 0 0 248 45 57 0 0 3 0 0 53 1 53 0 N.C. N.C. 55 0
Centre-du-Québec 330 0 0 0 0 0 459 235 83 0 0 8 0 0 83 1 83 0 N.C. N.C. 76 0
Montréal-Laval   3305 0 0 1 1 0 3308 1449 731 1 0 7 0 0 731 24 731 12 N.C. N.C. 731 1
Ouest du Québec 453 0 0 0 0 0 454 192 3 0 0 0 0 0 0 0 3 0 N.C. N.C. 3 0
Montérégie 254 0 0 0 0 0 254 139 0 0 0 0 0 0 0 0 0 0 N.C. N.C. 0 0
Province of Québec  6526 0 0 1 1 0 5532 2379 880 1 0 18 0 0 873 26 876 12 N.C. N.C. 871 1
P.H.O.L. - Ottawa 1691 0 1 0 1 0 1691 243 1691 0 0 0 0 263 1691 49 1690 10 1691 740 1690 32
EORLA 498 0 0 0 0 0 498 32 117 0 0 4 0 0 117 0 0 0 117 25 25 1
P.H.O.L. - Kingston 238 0 0 0 0 0 238 8 238 0 0 0 0 62 238 4 237 1 238 103 237 1
UHN / Mount Sinai Hospital 2032 0 0 1 1 0 2032 4 82 0 0 0 0 0 82 0 82 0 82 3 82 0
P.H.O.L. - Toronto   952 0 1 0 1 0 951 8 951 0 0 0 0 69 952 2 951 2 951 158 952 0
Sick Kids Hospital - Toronto 178 0 0 0 0 0 0 0 178 0 0 15 0 0 178 1 178 1 178 43 178 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 38 0 0 0 0 0 38 2 38 0 0 0 0 3 38 0 38 0 38 4 38 0
St. Joseph's - London   160 0 0 0 0 0 160 4 161 0 0 7 0 10 161 1 161 1 165 33 165 0
P.H.O.L. - London 185 0 0 0 0 0 185 2 185 0 0 0 0 12 185 2 185 0 185 49 185 0
P.H.O.L. - Orillia 52 0 0 0 0 0 52 1 52 0 0 0 0 5 52 1 51 0 52 21 51 0
P.H.O.L. - Thunder Bay 33 0 0 0 0 0 33 0 33 0 0 0 0 0 33 0 33 0 33 11 33 0
P.H.O.L. - Sudbury 72 0 0 0 0 0 72 0 72 0 0 0 0 0 72 0 72 0 72 17 72 0
P.H.O.L. - Hamilton 109 0 0 0 0 0 108 1 108 0 0 0 0 6 108 1 108 4 108 31 108 0
P.H.O.L. - Peterborough 45 0 0 0 0 0 45 1 45 0 0 0 0 3 45 0 44 0 45 7 44 0
St. Joseph's - Hamilton 1383 0 0 0 0 0 1377 32 1377 0 0 158 0 0 1377 7 1377 1 1377 282 0 0
Province of Ontario 7674 0 2 1 3 0 7488 338 5336 0 0 184 0 433 5337 68 5215 20 5340 1530 3868 34
Manitoba    7310 1 0 0 1 0 7310 11 136 0 0 4 0 0 136 2 399 2 136 55 399 1
Province of Saskatchewan 452 0 0 0 0 0 424 1 412 0 0 11 2 0 412 5 412 0 412 103 411 0
Province of Alberta 8878 0 1 2 3 0 3573 20 3573 0 3 88 10 0 3573 17 3573 1 3573 744 3573 38
Prairies 16640 1 1 2 4 0 11307 32 4121 0 3 103 12 0 4121 24 4384 3 4121 902 4383 39
British Columbia 5470 0 0 1 1 0 5297 51 1903 0 0 80 9 5 1903 24 1903 3 1872 449 1868 4
Yukon 914 0 0 0 0 0 967 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 109 0 0 0 0 0 101 0 20 0 0 0 0 0 20 2 20 0 101 16 20 0
Nunavut 3 0 0 0 0 0 3 0 3 0 0 0 0 0 3 0 3 0 3 1 3 0
Territories 1026 0 0 0 0 0 1071 2 23 0 0 0 0 0 23 2 23 0 104 17 23 0
CANADA 41773 1 3 5 9 0 35098 2811 16536 1 8 499 21 476 16526 167 16674 38 15710 4268 11810 79

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
39 2021-10-02 0.01 0.00 2.65 0.57 1.53 0.00 0.00 0.29 0.09 0.18 10.02 0.05 1.29 0.41 0.68 8.46 0.02 3.01 1.70 2.24 1.17 0.19 2.27 1.04 1.66 0.13 0.04 0.72 0.05 0.28 31.19 24.12 40.59 34.87 37.68 0.63 0.05 0.66 0.07 0.45

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
39 319 44 5 1,104 16 769 1

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
39 2021-10-02 8943 0.01 0.00 987 0.00 0.00 1089 0.00 0.00 1954 0.00 0.00 3398 0.03 0.00 1338 0.00 0.00 177 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
39 2021-10-02 7673 10.02 987 0.10 1104 53.53 1913 7.42 2328 0.47 1165 2.06 176 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
39 2021-10-02 3769 8.46 979 5.31 232 1.72 1461 13.07 716 6.01 377 7.69

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
39 2021-10-02 3770 1.17 980 0.31 232 3.45 1461 1.37 716 1.12 377 1.33

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
39 2021-10-02 3780 0.13 979 0.00 232 0.86 1428 0.21 760 0.00 377 0.00

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
39 2021-10-02 3540 31.19 979 35.55 N.A. N.A. 1461 32.44 716 21.93 373 32.98

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
39 2021-10-02 2531 0.63 120 0.00 232 0.43 1042 0.38 760 1.45 373 0.00

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