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Respiratory Virus Report, Week 36 - ending September 9, 2023

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Organization: Public Health Agency of Canada

Please note that the Respiratory Virus Detection Surveillance System (RVDSS) is a sentinel laboratory surveillance system that does not capture all respiratory virus testing performed in Canada; differences may exist between the data presented in this report and provincial/territorial epidemiological reports. SARS-CoV-2 laboratory data is included in this report to facilitate the comparison of positivity with other respiratory viruses. Interpretation should be made with caution as testing practices differ among viruses.

For additional SARS-CoV-2 surveillance information, please refer to the COVID-19 epidemiology update.

Overall summary

In week 36 (week ending September 9, 2023) in Canada, participating RVDSS laboratories reported 4,472 detections of SARS-CoV-2 from 28,182 tests (15.9% positive). Among non-SARS-CoV-2 respiratory viruses, where test volumes are lower (range of 4,896 to 15,028 tests), activity of enterovirus/rhinovirus is highest.

  • There has been an observed increase in national SARS-CoV-2 percent positivity since early-July.
  • While activity of enterovirus/rhinovirus is highest, it remains below expected levels typical of this time of year (759 detections; 14.8% positive).
  • Activity of all other non-SARS-CoV-2 respiratory viruses is low and near expected levels typical of this time of year.
  • 34/34 sentinel laboratories reported surveillance data

On this page

Abbreviations:
ADV
Adenovirus
Atl
Atlantic Canada
BC
British Columbia
Can
Canada
EORLA
Eastern Ontario Regional Laboratory Association
EV/RV
Enterovirus/Rhinovirus
Flu
Influenza
Flu A(H1)pdm09
Influenza A(H1N1)pdm09
Flu A(H3)
Influenza A(H3N2)
Flu A(UnS)
Influenza A(Unsubtyped)
HCoV
Human coronavirus 229E/OC43/NL63/HKU1
HMPV
Human metapneumovirus
HPIV
Human parainfluenza virus
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
RSV
Respiratory syncytial virus
RVDSS
Respiratory Virus Detection Surveillance System
SARS-CoV-2
Severe acute respiratory syndrome coronavirus 2
Terr
Territories of Canada
UHN
University Health Network

Respiratory virus detections

Table 1: Respiratory virus detections for the week ending September 9, 2023 (surveillance week 2023-36)
Reporting Laboratory SARS-CoV-2 Tested SARS-CoV-2 Positive 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 414 81 279 0 0 0 0 0 279 3 279 0 0 0 2 0 279 3 279 0 279 70 279 2
Prince Edward Island 162 23 9 0 0 0 0 0 9 0 7 0 0 0 0 0 7 1 7 0 7 4 7 0
Nova Scotia 1129 284 392 0 0 0 0 0 392 1 24 2 0 0 0 0 24 2 24 1 24 5 24 0
New Brunswick 641 86 367 0 0 0 0 0 367 2 45 0 1 0 1 0 45 1 45 0 45 11 45 0
Atlantic 2346 474 1047 0 0 0 0 0 1047 6 355 2 1 0 3 0 355 7 355 1 355 90 355 2
Région Nord-Est 1228 175 951 0 0 2 2 0 170 1 52 0 1 0 2 0 52 0 51 2 N.C. N.C. 52 0
Québec-Chaudière-Appalaches 1746 249 420 0 0 2 2 0 420 5 189 1 0 0 1 0 199 10 189 4 N.C. N.C. 189 1
Centre-du-Québec 1831 370 204 0 0 0 0 0 204 3 38 1 0 1 0 0 38 1 38 0 N.C. N.C. 38 0
Montréal-Laval 2916 467 1074 0 0 2 2 1 986 19 564 2 3 3 4 0 564 8 564 6 N.C. N.C. 564 6
Ouest du Québec 1369 279 339 0 0 0 0 0 339 10 15 0 0 0 0 0 15 0 15 0 N.C. N.C. 15 0
Montérégie 1154 240 657 0 0 1 1 0 624 7 3 0 0 0 0 0 3 0 3 0 N.C. N.C. 3 0
Province of Québec 10244 1780 3645 0 0 7 7 1 2743 45 861 4 4 4 7 0 871 19 860 12 N.C. N.C. 861 7
P.H.O.L. - Ottawa 551 213 208 0 0 0 0 0 208 0 124 0 0 0 0 1 124 0 124 0 124 26 124 0
EORLA 1135 129 341 0 0 1 1 0 341 9 21 0 1 0 0 0 21 0 21 0 21 4 21 0
P.H.O.L. - Kingston 248 39 81 0 0 0 0 0 81 0 74 0 0 0 0 1 74 0 74 0 74 26 74 0
UHN / Mount Sinai Hospital 859 44 450 0 0 0 0 1 450 0 15 0 0 0 0 0 15 0 15 0 15 2 15 0
P.H.O.L. - Toronto 386 149 634 11 1 0 7 0 634 1 583 0 0 0 0 17 583 6 583 3 583 125 583 1
Shared Hospital Laboratory 889 64 889 1 1 0 2 1 889 11 889 0 0 0 0 11 889 5 892 1 892 67 892 1
P.H.O.L. - Sault Ste. Marie 2 0 3 0 0 0 0 0 3 0 3 0 0 0 0 0 3 0 3 0 3 0 3 0
P.H.O.L. - Timmins 18 1 9 0 0 0 0 0 9 0 6 0 0 0 0 0 6 0 6 0 6 3 6 0
St. Joseph's - London 588 41 24 0 0 0 0 0 24 0 23 0 0 0 0 0 23 0 23 0 23 2 23 0
P.H.O.L. - London 344 124 243 0 0 0 0 0 243 1 199 0 0 0 0 6 199 1 199 0 199 46 199 0
P.H.O.L. - Orillia 29 4 42 0 0 0 0 0 42 0 34 0 0 0 0 1 34 0 34 0 34 13 34 0
P.H.O.L. - Thunder Bay 47 16 26 0 0 0 0 0 26 0 17 0 0 0 0 1 17 0 17 1 17 2 17 0
P.H.O.L. - Sudbury 9 1 10 0 0 0 0 0 10 0 9 0 0 0 0 0 9 0 9 0 9 2 9 0
P.H.O.L. - Hamilton 287 102 194 1 0 0 0 0 194 0 122 0 0 0 0 7 122 2 122 0 122 27 122 0
P.H.O.L. - Peterborough 36 2 36 0 0 0 0 0 36 3 32 0 0 0 0 0 32 1 32 0 32 8 32 0
St. Joseph's - Hamilton 1364 132 1138 0 0 1 1 2 1138 9 1138 0 0 1 0 0 1138 9 1138 1 1138 70 0 0
Sault Area Hospital 64 4 51 0 1 0 1 0 51 2 51 0 0 0 0 0 51 2 51 0 51 6 51 0
Province of Ontario 6856 1065 4379 13 3 2 12 4 4379 36 3340 0 1 1 0 45 3340 26 3343 6 3343 429 2205 2
Manitoba 1284 203 1044 0 0 1 1 0 1044 0 59 0 2 0 2 0 59 4 97 0 59 17 97 1
Saskatchewan 1183 99 472 0 0 0 0 0 458 0 207 0 0 0 0 0 207 8 207 2 207 43 207 0
Alberta 3502 391 2282 7 4 0 11 2 2180 4 705 3 2 1 0 0 705 9 702 0 695 100 705 5
Prairies 5969 693 3798 7 4 1 12 2 3682 4 971 3 4 1 2 0 971 21 1006 2 961 160 1009 6
British Columbia 2639 439 2066 20 3 1 31 2 2050 5 495 2 1 3 2 0 495 17 495 2 466 80 466 2
Yukon 57 12 33 0 0 0 0 0 33 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 2 1 1 0 0 0 0 0 1 0 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 1 0 N.C. N.C.
Nunavut 69 8 59 0 0 0 0 0 59 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.
Territories 128 21 93 0 0 0 0 0 93 0 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 1 0 N.C. N.C.
CANADA 28182 4472 15028 40 10 11 62 9 13994 96 6022 11 11 9 14 45 6032 90 6059 23 5126 759 4896 19

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.

Some 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 27, 2023 to September 9, 2023 (surveillance weeks 2023-35 to 2023-36)
Reporting Laboratory SARS-CoV-2 Tested SARS-CoV-2 Positive 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 902 160 562 0 0 0 0 0 562 3 562 0 0 1 5 0 562 6 562 0 562 133 562 2
Prince Edward Island 271 36 18 0 0 0 0 0 18 0 14 0 0 0 0 0 14 2 14 0 14 6 14 0
Nova Scotia 2000 457 724 0 0 0 0 0 724 1 47 3 0 0 0 0 47 3 47 1 47 7 47 0
New Brunswick 1283 178 727 0 0 0 0 0 712 2 94 0 1 0 1 0 94 3 94 0 94 19 94 0
Atlantic 4456 831 2031 0 0 0 0 0 2016 6 717 3 1 1 6 0 717 14 717 1 717 165 717 2
Région Nord-Est 2386 324 1779 0 0 2 2 0 316 2 101 1 2 0 6 0 101 1 100 5 N.C. N.C. 101 0
Québec-Chaudière-Appalaches 3328 475 821 0 0 3 3 1 821 12 375 2 0 0 2 0 389 23 375 6 N.C. N.C. 375 1
Centre-du-Québec 3337 630 399 0 0 1 1 0 397 6 66 3 1 1 1 0 66 2 66 0 N.C. N.C. 66 1
Montréal-Laval 5832 925 2142 0 0 6 6 2 1957 26 1126 12 3 6 7 0 1126 15 1127 11 N.C. N.C. 1126 8
Ouest du Québec 2512 500 616 0 0 1 1 1 616 14 29 1 1 1 2 0 29 1 29 2 N.C. N.C. 29 1
Montérégie 2200 450 1226 0 0 2 2 2 1175 14 10 0 0 0 0 0 10 0 10 0 N.C. N.C. 10 0
Province of Québec 19595 3304 6983 0 0 15 15 6 5282 74 1707 19 7 8 18 0 1721 42 1707 24 N.C. N.C. 1707 11
P.H.O.L. - Ottawa 840 328 371 1 0 0 1 0 371 3 228 0 0 0 0 2 228 0 228 0 228 40 228 0
EORLA 2043 218 646 0 0 2 2 0 646 17 35 0 1 0 0 0 35 0 35 0 35 5 35 0
P.H.O.L. - Kingston 435 92 141 0 0 0 0 0 141 0 125 0 0 0 0 6 125 0 125 0 125 36 125 0
UHN / Mount Sinai Hospital 1656 83 855 0 0 1 1 2 855 1 34 0 0 2 0 0 34 0 34 0 34 2 34 0
P.H.O.L. - Toronto 955 229 1364 18 3 0 14 0 1364 4 1267 0 0 0 0 46 1267 17 1265 3 1267 260 1265 4
Shared Hospital Laboratory 1752 133 1752 2 4 0 6 1 1752 24 1750 0 0 0 0 20 1750 13 1756 4 1756 119 1756 1
P.H.O.L. - Sault Ste. Marie 4 0 6 0 0 0 0 0 6 0 6 0 0 0 0 0 6 0 6 0 6 0 6 0
P.H.O.L. - Timmins 29 1 15 0 0 0 0 0 15 0 12 0 0 0 0 0 12 0 12 0 12 4 12 0
St. Joseph's - London 1088 79 75 0 0 0 0 0 75 1 75 0 0 0 0 0 75 0 75 0 75 7 75 0
P.H.O.L. - London 620 202 412 0 0 0 0 1 412 1 328 0 0 0 0 13 328 1 328 0 328 63 328 0
P.H.O.L. - Orillia 44 6 70 0 0 0 0 0 70 1 61 0 0 0 0 2 61 0 61 0 61 18 61 0
P.H.O.L. - Thunder Bay 89 25 47 0 0 0 0 0 47 0 33 0 0 0 0 1 33 1 33 1 33 7 33 0
P.H.O.L. - Sudbury 19 3 22 0 0 0 0 0 22 0 20 0 0 0 0 0 20 0 20 0 20 6 20 0
P.H.O.L. - Hamilton 534 175 373 1 0 0 0 0 373 1 225 0 0 0 0 10 225 3 225 0 225 42 225 0
P.H.O.L. - Peterborough 63 7 70 0 0 0 0 0 70 3 63 0 0 0 0 0 63 1 63 0 63 22 63 0
St. Joseph's - Hamilton 2718 243 2325 0 0 4 4 4 2325 12 2325 0 0 5 0 0 2325 15 2325 5 2325 137 0 0
Sault Area Hospital 111 7 88 0 1 0 1 0 88 2 88 0 0 0 0 0 88 2 88 0 88 13 98 0
Province of Ontario 13000 1831 8632 22 8 7 29 8 8632 70 6675 0 1 7 0 100 6675 53 6679 13 6681 781 4364 5
Manitoba 2428 357 1986 0 0 3 3 0 1986 0 108 0 2 0 3 0 108 10 169 0 108 38 169 1
Saskatchewan 2165 165 911 0 0 1 1 0 887 1 380 1 2 0 0 0 380 16 375 3 365 75 380 2
Alberta 6525 712 4547 17 12 0 29 2 4336 6 1487 5 4 2 2 0 1487 19 1480 0 1459 190 1487 10
Prairies 11118 1234 7444 17 12 4 33 2 7209 7 1975 6 8 2 5 0 1975 45 2024 3 1932 303 2036 13
British Columbia 5290 917 4224 52 14 5 84 2 4208 12 1130 3 3 3 12 0 1130 33 1130 3 1074 176 1074 3
Yukon 124 24 75 0 1 0 2 0 75 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 2 1 1 0 0 0 0 0 1 0 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 1 0 N.C. N.C.
Nunavut 124 10 101 0 0 0 0 0 101 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 250 35 177 0 1 0 2 0 177 1 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 1 0 N.C. N.C.
CANADA 53709 8152 29491 91 35 31 163 18 27524 170 12204 31 20 21 41 100 12218 187 12257 44 10405 1425 9898 34

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.

Some 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 severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), influenza, and respiratory syncytial 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: Changes to testing practices during the COVID-19 pandemic may cause substantial changes to indicator estimates from previous years. Collection of laboratory testing practice meta-data to understand these changes is ongoing. Interpret trends with caution.

Note: SARS-CoV-2 surveillance was integrated into RVDSS at the beginning of the 2022-2023 season; no prior data is available for historical comparison.

Note: Data from week 11 of the 2019-2020 season onwards are excluded from the historical comparison due to the COVID-19 pandemic.

Figure 1: Positive severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), influenza, and respiratory syncytial 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 2023-2024 SARS-CoV-2% 2022-2023 SARS-CoV-2% 2023-2024 A% 2022-2023 A% 2021-2022 A% Max A% Base Min A% Base Av A% Base 2023-2024 B% 2022-2023 B% 2021-2022 B% Max B% Base Min B% Base Av B% Base 2023-2024 RSV% 2022-2023 RSV% 2021-2022 RSV% Max RSV% Base Min RSV% Base Av RSV% Base
35 2023-09-02 14.42 13.40 0.70 0.18 0.04 1.60 0.11 0.67 0.06 0.02 0.00 0.28 0.00 0.14 0.55 1.12 4.43 1.34 0.38 0.61
36 2023-09-09 15.87 13.07 0.41 0.14 0.01 2.11 0.23 0.99 0.06 0.04 0.00 0.55 0.00 0.15 0.69 1.12 6.61 1.09 0.22 0.62
Figure 2: Positive tests (%) of other respiratory viruses reported by participating laboratories in Canada by surveillance week compared to average and range from 2014-2015 to 2019-2020 season
Figure 2

Shaded area represents the maximum and minimum % of respiratory virus tests positive reported by week from seasons 2014-2015 to 2019-2020

Note: Changes to testing practices during the COVID-19 pandemic may cause substantial changes to indicator estimates from previous years. Collection of laboratory testing practice meta-data to understand these changes is ongoing. Interpret trends with caution.

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

Figure 2: Positive tests (%) of other respiratory viruses reported by participating laboratories in Canada by surveillance week compared to average and range from 2014-2015 to 2019-2020 season
Week Week end 2023-2024 EV/RV% 2022-2023 EV/RV% 2021-2022 EV/RV% Max EV/RV% Base Min EV/RV% Base Av EV/RV% Base 2023-2024 HPIV% 2022-2023 HPIV% 2021-2022 HPIV% Max HPIV% Base Min HPIV% Base Av HPIV% Base 2023-2024 ADV% 2022-2023 ADV% 2021-2022 ADV% Max ADV% Base Min ADV% Base Av ADV% Base 2023-2024 HMPV% 2022-2023 HMPV% 2021-2022 HMPV% Max HMPV% Base Min HMPV% Base Av HMPV% Base 2023-2024 HCoV% 2022-2023 HCoV% 2021-2022 HCoV% Max HCoV% Base Min HCoV% Base Av HCoV% Base
35 2023-09-02 12.62 15.47 21.96 27.19 22.44 24.71 1.99 2.80 5.99 3.16 1.15 2.44 1.57 2.28 1.18 1.74 0.99 1.43 0.34 1.80 0.23 2.04 0.10 0.78 0.30 0.53 1.05 0.76 0.18 0.45
36 2023-09-09 14.81 16.22 18.59 30.69 23.30 26.31 1.49 3.21 4.93 3.31 1.35 2.32 1.49 2.18 1.15 2.85 1.42 1.87 0.38 1.81 0.24 0.84 0.10 0.48 0.39 0.38 0.62 0.38 0.12 0.22

Positive severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) tests

Figure 3: Positive severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) tests (%) in Canada by region by surveillance week
Figure 3

Note: Differences in positivity between jurisdictions can reflect differences in testing practices. Please interpret with caution.

Figure 3: Positive severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) tests (%) in Canada by region by surveillance week
Week Week end Can Tests SARS-CoV-2% Atl Tests SARS-CoV-2% QC Tests SARS-CoV-2% ON Tests SARS-CoV-2% Pr Tests SARS-CoV-2% BC Tests SARS-CoV-2% Terr Tests SARS-CoV-2%
35 2023-09-02 25527 14.42 2110 16.92 9351 16.30 6144 12.47 5149 10.51 2651 18.03 122 11.48
36 2023-09-09 28182 15.87 2346 20.20 10244 17.38 6856 15.53 5969 11.61 2639 16.64 128 16.41

Positive influenza (Flu) tests

Figure 4: Positive influenza (Flu) tests (%) in Canada by region by surveillance week
Figure 4
Figure 4: 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 2023-09-02 14463 0.70 0.06 984 0.00 0.00 3338 0.24 0.15 4253 0.40 0.09 3646 0.58 0.00 2158 2.46 0.00 84 2.38 0.00
36 2023-09-09 15028 0.41 0.06 1047 0.00 0.00 3645 0.19 0.03 4379 0.27 0.09 3798 0.32 0.05 2066 1.50 0.10 93 0.00 0.00

Positive respiratory syncytial virus (RSV) tests

Figure 5: Positive respiratory syncytial virus (RSV) tests (%) in Canada by region by surveillance week
Figure 5
Figure 5: 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 2023-09-02 13530 0.55 969 0.00 2539 1.14 4253 0.80 3527 0.09 2158 0.32 84 1.19
36 2023-09-09 13994 0.69 1047 0.57 2743 1.64 4379 0.82 3682 0.11 2050 0.24 93 0.00

Positive human parainfluenza virus (HPIV) tests

Figure 6: Positive human parainfluenza virus (HPIV) tests (%) in Canada by region by surveillance week
Figure 6
Figure 6: 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 2023-09-02 6182 1.99 362 1.38 846 3.90 3335 1.83 1004 1.10 635 2.05
36 2023-09-09 6022 1.49 355 1.69 861 2.21 3340 1.41 971 1.03 495 1.62

Positive adenovirus (ADV) tests

Figure 7: Positive adenovirus (ADV) tests (%) in Canada by region by surveillance week
Figure 7
Figure 7: 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 2023-09-02 6186 1.57 362 1.93 850 2.71 3335 0.81 1004 2.39 635 2.52
36 2023-09-09 6032 1.49 355 1.97 871 2.18 3340 0.78 971 2.16 495 3.43

Positive human metapneumovirus (HMPV) tests

Figure 8: Positive human metapneumovirus (HMPV) tests (%) in Canada by region by surveillance week
Figure 8
Figure 8: 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 2023-09-02 6198 0.34 362 0.00 847 1.42 3336 0.21 1018 0.10 635 0.16
36 2023-09-09 6059 0.38 355 0.28 860 1.40 3343 0.18 1006 0.20 495 0.40

Positive enterovirus/rhinovirus (EV/RV) tests

Figure 9: Positive enterovirus/rhinovirus (EV/RV) tests (%) in Canada by region by surveillance week
Figure 9
Figure 9: 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 2023-09-02 5279 12.62 362 20.72 - - 3338 10.55 971 14.73 608 15.79
36 2023-09-09 5126 14.81 355 25.35 - - 3343 12.83 961 16.65 466 17.17

Positive human coronavirus (HCoV) tests

Figure 10: Positive human coronavirus (HCoV) tests (%) in Canada by region by surveillance week
Figure 10
Figure 10: 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 2023-09-02 5002 0.30 362 0.00 846 0.47 2159 0.14 1027 0.68 608 0.16
36 2023-09-09 4896 0.39 355 0.56 861 0.81 2205 0.09 1009 0.59 466 0.43

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