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Respiratory Virus Report, Week 25 - ending June 25, 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

Detections of seasonal respiratory viruses excluding influenza have been stable since May.

  • Influenza activity has continued to decrease, and is now below the epidemic threshold and near expected levels.
    • A total of 375 influenza detections were reported (365 influenza A, 10 influenza B).
  • Enterovirus/Rhinovirus is now the most common seasonal respiratory virus detected in Canada (395 detections; 16.1% positive). Activity is increasing but below expected levels for this time of year.
  • Activity of several other respiratory viruses is increasing, and is above or near expected levels.
  • The number of tests performed for all viruses was above expected levels.
  • 31/34 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 June 25, 2022 (surveillance week 2022-25)
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 177 0 0 3 3 0 177 11 177 0 3 0 0 0 177 0 177 3 177 8 170 9
Prince Edward Island 29 0 0 0 0 0 29 0 29 0 0 0 4 0 29 1 29 2 29 10 29 0
Nova Scotia 577 0 0 39 39 0 577 7 28 0 0 0 1 0 28 2 28 6 28 3 28 2
New Brunswick 416 0 31 2 33 0 281 9 50 0 3 1 0 0 50 0 50 4 50 5 50 2
Atlantic 1199 0 31 44 75 0 1064 27 284 0 6 1 5 0 284 3 284 15 284 26 277 13
Région Nord-Est 1229 1 0 10 11 4 450 16 1 0 0 0 0 0 1 0 1 1 N.C. N.C. 1 0
Québec-Chaudière-Appalaches 739 0 0 24 24 5 739 2 21 0 0 1 1 0 268 9 266 0 N.C. N.C. 130 3
Centre-du-Québec 557 0 0 22 22 1 441 1 22 1 0 1 0 0 22 2 22 1 N.C. N.C. 22 3
Montréal-Laval 1559 0 0 24 24 0 983 2 333 7 10 10 0 0 333 10 333 6 N.C. N.C. 360 12
Ouest du Québec 309 0 0 29 29 0 309 2 19 1 0 1 1 0 19 1 19 2 N.C. N.C. 19 0
Montérégie 286 0 0 20 20 0 59 0 0 0 0 0 0 0 0 0 0 0 N.C. N.C. 0 0
Province of Québec 4679 1 0 129 130 10 2981 23 396 9 10 13 2 0 643 22 641 10 N.C. N.C. 532 18
P.H.O.L. - Ottawa 30 0 0 0 0 0 30 0 30 0 0 0 0 0 30 1 30 1 30 2 30 0
EORLA 267 0 0 6 6 0 267 3 40 0 0 1 1 0 40 0 40 5 40 9 40 1
P.H.O.L. - Kingston 29 0 0 0 0 0 29 3 29 0 0 0 0 2 29 0 29 6 29 10 29 2
UHN / Mount Sinai Hospital 428 0 0 2 2 0 428 2 17 0 0 0 0 0 17 0 17 1 17 0 17 1
P.H.O.L. - Toronto 253 0 9 1 3 0 252 0 252 0 0 0 0 10 252 7 251 21 252 32 251 31
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 10 0 0 0 0 0 10 0 10 0 0 0 0 2 10 0 10 0 10 3 10 0
P.H.O.L. - Timmins 6 0 0 0 0 0 6 1 6 0 0 0 0 1 6 0 6 1 6 0 6 2
St. Joseph's - London 56 0 0 2 2 0 56 3 56 0 0 0 0 3 56 0 56 9 56 9 1 0
P.H.O.L. - London 84 0 2 0 2 0 84 1 84 0 0 0 0 2 84 0 84 6 84 9 84 15
P.H.O.L. - Orillia 31 0 1 0 1 0 31 5 31 0 0 0 0 2 31 3 31 11 31 9 31 1
P.H.O.L. - Thunder Bay 6 0 1 0 0 0 6 1 6 0 0 0 0 1 6 0 6 1 6 1 6 0
P.H.O.L. - Sudbury 6 0 0 0 0 0 6 0 6 0 0 0 0 2 6 0 6 0 6 0 6 1
P.H.O.L. - Hamilton 47 0 0 0 0 0 47 0 47 0 0 0 0 4 47 0 47 5 47 8 47 0
P.H.O.L. - Peterborough 8 0 0 0 0 0 8 0 8 0 0 0 0 1 8 0 8 0 8 5 8 0
St. Joseph's - Hamilton 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.
Province of Ontario 1261 0 13 11 16 0 1260 19 622 0 0 1 1 30 622 11 621 67 622 97 566 54
Province of Manitoba 312 0 2 1 3 0 312 10 124 0 0 0 2 0 124 0 125 3 124 18 125 3
Province of Saskatchewan 358 0 0 9 9 0 358 7 169 0 1 1 10 0 169 5 169 20 169 44 169 4
Province of Alberta 1849 0 55 8 63 0 1570 26 707 0 15 29 11 0 707 11 705 32 695 112 707 5
Prairies 2519 0 57 18 75 0 2240 43 1000 0 16 30 23 0 1000 16 999 55 988 174 1001 12
British Columbia 2771 0 21 0 61 0 2694 34 514 1 2 1 8 4 514 8 514 60 504 92 504 9
Yukon 2 0 0 0 0 0 2 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 52 0 2 0 2 0 52 14 3 0 0 0 0 0 3 0 3 0 51 6 3 0
Nunavut 87 0 6 0 6 0 87 19 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 8 0 8 0 141 33 3 0 0 0 0 0 3 0 3 0 51 6 3 0
CANADA 12570 1 130 202 365 10 10380 179 2819 10 34 46 39 34 3066 60 3062 207 2449 395 2883 106

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) 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: 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.

For British Columbia, only data from subtyped influenza A specimens are included in the weekly number of influenza detections. The sum of A(H1N1)pdm09, A(H3), and A(UnS) positive results may not equal the sum of total Flu A positive results.

Due to different testing protocols of laboratories across Canada, influenza A subtype detection counts may not be included in total influenza A detection counts, as some subtype detections are not available through routine testing but are subsequently reported if further subtype testing is conducted. In these instances, subtype counts do not reflect influenza A detections intended to be captured by routine surveillance, and are excluded from total detections and percent positivity.

Table 2: Cumulative respiratory virus detections from August 29, 2021 to June 25, 2022 (surveillance weeks 2021-35 to 2022-25)
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 14388 0 0 315 315 0 14386 198 14389 1 24 116 0 314 14396 46 14383 76 14450 2117 170 9
Prince Edward Island 2545 0 45 17 62 0 2545 259 2500 0 0 158 22 1 2545 66 2545 94 2545 590 2545 138
Nova Scotia 22973 0 2 367 369 8 22978 358 1756 0 3 41 29 0 1776 20 1776 42 1776 155 1776 48
New Brunswick 18424 0 101 343 444 0 11751 329 3305 0 4 28 26 0 3298 33 3305 37 3305 105 3214 18
Atlantic 58330 0 148 1042 1190 8 51660 1144 21950 1 31 343 77 315 22015 165 22009 249 22076 2967 7705 213
Région Nord-Est 31939 45 1 2178 2224 20 14829 1461 814 2 0 10 1 0 905 18 418 14 N.C. N.C. 1249 24
Québec-Chaudière-Appalaches 11664 0 0 1414 1414 48 12734 1008 1740 1 15 10 17 0 4227 129 4128 129 N.C. N.C. 2594 108
Centre-du-Québec 12597 0 3 1253 1256 11 11383 1091 1381 3 8 27 3 0 1381 41 1389 25 N.C. N.C. 1374 30
Montréal-Laval 32312 0 5 1506 1511 8 28362 2469 9063 21 80 62 8 0 9062 523 9060 381 N.C. N.C. 9245 233
Ouest du Québec 7973 0 6 637 643 0 7915 940 255 1 8 6 6 0 248 21 244 13 N.C. N.C. 244 5
Montérégie 5227 0 0 300 300 0 4436 389 0 0 0 0 0 0 0 0 0 0 N.C. N.C. 0 0
Province of Québec 101712 45 15 7288 7348 87 79659 7358 13253 28 111 115 35 0 15823 732 15239 562 N.C. N.C. 14706 400
P.H.O.L. - Ottawa 7040 2 81 1 84 0 7040 1442 7040 0 0 0 0 740 7040 313 7038 46 7040 2252 7038 291
EORLA 7974 0 0 168 168 0 7949 649 1186 0 2 21 9 0 1186 21 867 24 1186 185 844 30
P.H.O.L. - Kingston 1529 0 219 0 8 0 1536 135 1535 0 0 0 0 135 1536 26 1517 20 1535 350 1517 99
UHN / Mount Sinai Hospital 20158 0 0 55 55 4 20159 114 668 0 0 0 0 0 668 1 668 2 668 17 668 12
P.H.O.L. - Toronto 10824 2 367 2 121 0 10811 291 10811 0 0 0 0 392 10817 155 10801 150 10811 1207 10802 465
Sick Kids Hospital - Toronto 839 0 0 0 0 0 0 0 839 0 2 68 1 0 839 12 839 1 839 233 839 10
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 351 0 4 1 4 0 350 9 350 0 0 0 0 9 350 3 350 2 350 54 350 23
P.H.O.L. - Timmins 500 0 16 0 9 0 500 28 500 0 0 0 0 19 500 1 499 2 500 40 499 32
St. Joseph's - London 13004 0 0 70 70 0 13007 782 11450 0 0 7 0 95 11450 152 11450 90 11404 634 544 4
P.H.O.L. - London 3936 0 54 10 56 0 3935 466 3935 0 0 0 0 184 3935 92 3932 83 3935 511 3932 296
P.H.O.L. - Orillia 1023 0 8 1 9 0 1023 141 1023 0 0 0 0 67 1023 35 1020 51 1023 255 1020 77
P.H.O.L. - Thunder Bay 355 0 5 0 4 0 355 27 355 0 0 0 0 25 355 1 355 12 355 62 355 37
P.H.O.L. - Sudbury 370 0 6 0 6 0 370 12 370 0 0 0 0 11 370 2 370 7 370 34 370 12
P.H.O.L. - Hamilton 2024 0 24 2 22 0 2019 78 2019 0 0 0 0 68 2020 20 2019 48 2019 267 2019 113
P.H.O.L. - Peterborough 674 0 1 0 1 0 674 49 667 0 0 0 0 14 667 6 664 3 667 111 664 45
St. Joseph's - Hamilton 24329 0 4 237 241 1 24323 1651 24323 5 0 663 0 0 24323 234 24323 263 24323 2098 0 0
Province of Ontario 94930 4 789 547 858 5 94051 5874 67071 5 4 759 10 1759 67079 1074 66712 804 67025 8310 31461 1546
Manitoba 56957 1 84 487 572 0 56957 1392 3403 2 13 77 21 0 3403 55 4811 39 3403 419 4617 94
Province of Saskatchewan 29582 2 467 295 764 0 29547 1742 5911 1 18 210 91 0 5911 114 5911 99 5911 877 5900 312
Province of Alberta 87468 7 1712 833 2552 3 67439 3614 35998 6 142 799 249 0 35991 386 35977 567 35659 4043 35998 1538
Prairies 174007 10 2263 1615 3888 3 153943 6748 45312 9 173 1086 361 0 45305 555 46699 705 44973 5339 46515 1944
British Columbia 201990 7 836 6 1275 88 197295 9358 27057 11 23 1101 310 184 27057 534 27053 477 26529 4059 26547 969
Yukon 5462 1 5 2 14 7 5471 308 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 1902 0 204 1 205 0 1890 189 125 0 1 2 0 0 125 3 125 0 1822 198 125 1
Nunavut 16360 0 395 7 402 0 16358 395 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 23724 1 604 10 621 7 23719 892 176 0 1 6 0 0 176 6 176 0 1873 211 159 1
CANADA 654693 67 4655 10508 15180 198 600327 31374 174819 54 343 3410 793 2258 177455 3066 177888 2797 162476 20886 127093 5073

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.

Note: Included in the cumulative detections this season are 11 co-infections of influenza A and B (total of 22 detections) that are suspected to be associated with recent live attenuated influenza vaccine (LAIV) receipt. Co-infections known or reported to be associated with recent LAIV are removed by the submitting laboratory or by PHAC beginning in week 44 as they do not represent community transmission of seasonal influenza viruses.

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) are sent to reference laboratories in British Columbia and reported results reflect specimens identified as originating from YT.

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.

For British Columbia, only data from subtyped influenza A specimens are included in the weekly number of influenza detections. The sum of A(H1N1)pdm09, A(H3), and A(UnS) positive results may not equal the sum of total Flu A positive results.

Due to different testing protocols of laboratories across Canada, influenza A subtype detection counts may not be included in total influenza A detection counts, as some subtype detections are not available through routine testing but are subsequently reported if further subtype testing is conducted. In these instances, subtype counts do not reflect influenza A detections intended to be captured by routine surveillance, and are excluded from total detections and percent positivity.

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 4.43 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 21.96 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 6.60 0.04 1.09 0.22 0.57 4.93 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 18.59 8.13 30.69 23.30 26.31 0.62 0.00 0.38 0.12 0.22
37 2021-09-18 0.03 0.00 1.59 0.36 0.87 0.00 0.00 0.19 0.04 0.12 7.59 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 27.46 8.07 33.58 27.74 31.68 0.44 0.05 0.56 0.00 0.26
38 2021-09-25 0.00 0.02 2.15 0.43 1.16 0.00 0.00 0.21 0.00 0.14 7.16 0.10 1.24 0.37 0.64 4.73 0.07 2.87 1.92 2.33 0.82 0.58 2.04 1.11 1.63 0.37 0.02 1.43 0.06 0.47 33.19 15.67 39.57 32.80 35.33 0.67 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 8.48 0.05 1.29 0.41 0.68 8.12 0.02 3.01 1.70 2.24 1.14 0.19 2.27 1.04 1.66 0.17 0.04 0.72 0.05 0.28 30.01 24.12 40.59 34.87 37.68 0.62 0.05 0.66 0.07 0.45
40 2021-10-09 0.00 0.00 2.17 1.01 1.58 0.02 0.00 0.20 0.05 0.11 8.53 0.07 1.39 0.34 0.67 8.19 0.02 3.28 1.90 2.43 1.31 0.44 2.25 1.39 1.82 0.16 0.00 0.92 0.05 0.34 26.26 16.62 41.29 33.00 35.43 0.57 0.09 1.08 0.22 0.58
41 2021-10-16 0.03 0.01 2.66 1.05 1.57 0.03 0.00 0.36 0.03 0.16 9.54 0.10 1.74 0.58 0.98 10.46 0.06 3.70 1.94 2.74 1.37 0.37 1.91 1.28 1.70 0.20 0.19 0.95 0.04 0.46 22.91 15.48 33.62 26.94 29.81 1.69 0.02 0.70 0.00 0.33
42 2021-10-23 0.03 0.00 2.96 0.77 1.92 0.02 0.00 0.45 0.05 0.25 8.18 0.07 2.11 0.63 1.14 10.01 0.06 3.89 2.64 3.20 2.54 0.47 2.38 1.47 1.86 0.15 0.06 0.89 0.15 0.38 22.16 13.60 32.62 24.54 27.82 1.07 0.00 1.18 0.20 0.49
43 2021-10-30 0.03 0.01 5.23 0.68 2.60 0.02 0.00 0.55 0.06 0.23 8.11 0.07 2.16 0.55 1.32 9.38 0.07 3.98 3.18 3.56 1.15 0.37 2.42 1.63 1.96 0.36 0.02 1.64 0.12 0.57 19.64 13.14 28.73 21.67 24.95 1.05 0.00 2.35 0.27 0.75
44 2021-11-06 0.10 0.04 8.42 1.08 3.39 0.10 0.03 0.71 0.12 0.31 7.82 0.05 3.35 0.83 1.92 10.28 0.03 4.81 2.94 3.70 1.42 0.22 2.88 1.18 2.20 0.77 0.13 1.08 0.23 0.47 21.45 9.23 23.82 16.75 21.34 2.21 0.00 2.59 0.21 0.88
45 2021-11-13 0.07 0.02 9.83 1.18 4.19 0.06 0.02 0.97 0.22 0.44 7.03 0.04 4.43 1.29 2.59 9.97 0.01 5.42 2.53 4.01 1.63 0.33 2.68 2.02 2.42 0.64 0.01 1.30 0.04 0.77 22.39 9.70 23.08 15.17 20.56 2.57 0.03 2.74 0.52 0.96
46 2021-11-20 0.10 0.03 13.95 1.42 5.47 0.06 0.01 1.49 0.09 0.58 7.18 0.06 6.33 1.38 3.29 8.29 0.04 5.72 1.62 4.19 2.51 0.30 2.90 1.99 2.53 0.99 0.04 1.43 0.18 0.79 21.37 9.02 22.77 15.28 19.27 2.99 0.03 3.32 0.46 1.25
47 2021-11-27 0.13 0.03 15.24 1.25 6.91 0.07 0.04 2.13 0.13 0.80 8.10 0.03 8.69 1.79 4.46 7.04 0.06 7.00 2.36 4.72 1.94 0.32 2.95 1.83 2.35 1.01 0.02 2.02 0.09 0.89 18.54 8.44 20.84 12.15 16.09 3.90 0.04 3.26 0.37 1.25
48 2021-12-04 0.19 0.04 18.07 0.76 9.40 0.15 0.01 3.18 0.08 1.20 8.92 0.02 9.47 3.11 5.72 5.78 0.02 6.14 3.03 4.18 1.89 0.35 3.34 1.66 2.48 1.48 0.02 1.94 0.31 1.08 16.64 7.94 16.72 12.69 13.83 4.94 0.02 4.30 1.00 2.04
49 2021-12-11 0.23 0.03 19.52 1.43 11.41 0.05 0.01 4.21 0.19 1.60 10.09 0.06 12.26 4.87 7.12 3.97 0.00 5.65 2.94 4.19 2.48 0.54 3.03 1.84 2.49 1.22 0.05 2.80 0.49 1.46 14.57 6.21 16.32 10.72 13.07 6.58 0.05 5.19 0.84 2.52
50 2021-12-18 0.23 0.01 26.42 1.97 14.27 0.02 0.01 7.95 0.15 2.55 10.78 0.07 13.19 5.39 7.93 3.23 0.06 5.95 2.54 4.27 2.72 0.51 3.27 1.49 2.45 1.08 0.02 3.32 0.46 1.70 12.40 6.62 13.85 8.43 10.90 7.26 0.11 6.04 1.54 3.16
51 2021-12-25 0.18 0.00 28.53 2.27 16.81 0.02 0.01 10.44 0.19 3.30 8.97 0.07 15.23 6.52 9.27 3.01 0.04 6.71 2.94 3.95 2.54 0.58 3.20 1.36 2.04 1.20 0.04 4.39 0.37 2.44 9.95 5.65 14.18 8.81 10.48 8.11 0.05 6.68 1.87 3.72
52 2022-01-01 0.09 0.00 33.97 3.30 20.41 0.01 0.00 12.73 0.23 4.07 6.72 0.01 17.80 6.83 10.39 2.13 0.03 5.08 2.87 3.75 1.92 0.48 2.59 1.20 1.76 1.00 0.11 3.81 0.41 2.44 7.71 6.53 14.41 6.24 9.23 10.33 0.07 6.73 2.78 4.75
1 2022-01-08 0.08 0.00 30.93 4.58 19.55 0.00 0.00 10.34 0.22 3.86 5.26 0.04 15.62 7.12 10.17 1.84 0.12 5.08 2.68 3.34 1.84 0.81 2.67 0.85 1.54 0.72 0.06 4.45 0.28 2.70 5.71 5.43 11.09 4.36 7.42 9.27 0.12 7.77 3.07 5.16
2 2022-01-15 0.11 0.00 26.80 5.46 19.10 0.01 0.00 11.01 0.29 3.91 4.32 0.07 14.05 6.60 9.63 1.19 0.08 4.12 2.46 3.05 1.13 0.82 2.15 0.87 1.37 0.38 0.03 4.76 0.42 2.66 3.98 5.18 9.55 4.31 6.79 7.46 0.16 7.89 2.84 5.44
3 2022-01-22 0.04 0.01 28.20 9.13 18.94 0.01 0.01 12.75 0.35 4.69 3.42 0.03 15.56 6.72 10.32 0.76 0.05 3.25 2.59 2.82 1.34 0.40 2.10 1.15 1.45 0.24 0.11 5.56 0.47 3.13 3.12 3.56 8.42 4.44 6.01 4.97 0.26 7.90 4.17 6.11
4 2022-01-29 0.05 0.00 27.01 12.34 18.81 0.00 0.00 12.74 0.41 5.15 2.33 0.05 15.88 7.02 11.23 0.64 0.06 3.12 1.77 2.55 1.18 0.46 1.83 1.11 1.49 0.23 0.12 5.19 0.55 3.01 2.60 3.87 9.04 4.89 6.41 3.92 0.16 7.86 3.79 6.08
5 2022-02-05 0.03 0.00 23.66 15.78 19.14 0.01 0.00 14.84 0.41 5.76 2.19 0.04 16.33 7.17 11.49 0.48 0.06 3.48 1.70 2.39 1.57 0.29 1.93 1.36 1.62 0.25 0.16 5.70 0.58 3.29 3.02 4.76 9.79 6.06 6.94 2.83 0.13 8.49 4.55 6.84
6 2022-02-12 0.04 0.02 23.36 15.63 18.79 0.01 0.00 16.23 0.44 6.21 2.10 0.08 15.79 6.52 11.70 0.51 0.10 2.89 1.57 2.19 1.44 0.54 1.74 1.25 1.51 0.42 0.19 5.57 0.65 3.39 3.86 5.08 9.89 6.16 6.98 3.01 0.20 8.57 3.48 6.75
7 2022-02-19 0.02 0.00 24.22 15.48 18.52 0.00 0.00 17.02 0.35 6.54 2.16 0.02 15.53 6.95 11.26 0.44 0.00 3.20 1.42 2.12 1.52 0.49 1.61 1.30 1.51 0.44 0.14 6.05 1.45 3.94 4.46 5.56 8.95 6.00 7.02 3.24 0.13 8.02 4.35 6.54
8 2022-02-26 0.06 0.00 28.62 12.42 18.53 0.02 0.00 16.79 0.45 6.60 2.12 0.05 15.47 6.64 10.63 0.73 0.16 3.21 1.31 2.25 1.85 0.72 2.00 1.38 1.67 0.53 0.04 5.74 1.19 4.08 6.31 4.77 8.35 5.20 6.94 3.67 0.14 8.29 4.21 6.60
9 2022-03-05 0.12 0.00 29.30 11.04 18.35 0.00 0.00 15.45 0.74 6.24 2.50 0.01 15.62 6.54 10.04 0.60 0.07 3.35 1.41 2.44 1.90 0.86 1.92 1.09 1.40 0.40 0.11 6.42 1.87 4.38 7.80 5.48 9.04 5.73 7.75 3.32 0.36 8.01 5.09 6.86
10 2022-03-12 0.16 0.00 29.65 8.51 16.81 0.00 0.00 14.86 0.81 6.41 3.10 0.00 14.97 6.35 9.37 0.68 0.06 4.18 1.19 2.69 1.98 0.38 2.23 1.50 1.78 0.51 0.00 6.74 2.26 4.80 8.24 4.62 10.16 5.55 8.08 3.86 0.34 8.34 4.28 7.01
11 2022-03-19 0.26 0.01 24.27 6.74 14.55 0.01 0.00 13.11 1.05 6.86 3.71 0.03 12.11 6.29 8.83 0.66 0.19 4.58 1.35 3.00 1.88 0.63 2.32 1.23 1.69 0.59 0.11 7.94 2.52 4.71 8.97 4.08 9.45 7.15 8.24 3.25 0.33 8.02 4.35 6.23
12 2022-03-26 0.86 0.00 20.91 5.51 12.67 0.00 0.00 11.53 1.51 7.43 3.79 0.07 10.70 6.46 8.12 1.05 0.00 4.95 1.26 3.34 1.71 0.35 2.13 1.84 1.97 0.77 0.14 6.69 3.65 5.19 9.52 4.61 10.26 8.71 9.66 4.38 0.54 6.99 3.95 5.69
13 2022-04-02 1.52 0.00 18.09 4.67 11.66 0.00 0.00 12.55 1.98 7.90 4.00 0.04 9.32 6.45 7.64 1.39 0.18 5.21 1.48 3.68 2.30 0.35 2.12 1.37 1.70 1.28 0.07 6.90 3.95 5.18 8.49 4.86 12.58 7.69 10.26 4.45 0.30 8.16 3.65 5.46
14 2022-04-09 2.48 0.00 17.83 3.21 9.98 0.01 0.00 13.12 2.12 7.88 4.05 0.08 8.09 5.32 6.44 1.18 0.00 6.26 1.67 4.31 1.74 0.34 2.31 1.50 1.86 1.45 0.04 7.70 4.14 6.00 9.25 5.49 13.59 8.60 12.03 4.24 0.41 7.79 3.84 4.87
15 2022-04-16 3.84 0.01 17.75 2.18 8.72 0.02 0.00 12.22 2.00 7.55 3.46 0.11 7.73 4.64 5.97 1.35 0.12 6.94 1.97 4.61 1.71 0.98 2.62 1.64 2.12 1.52 0.04 7.47 3.81 5.94 9.14 8.23 14.59 9.44 13.16 4.97 1.07 5.52 3.23 4.24
16 2022-04-23 6.98 0.00 13.67 2.13 6.80 0.01 0.00 11.94 2.56 7.68 2.97 0.23 6.64 4.40 5.40 2.19 0.16 7.88 1.97 5.20 1.84 0.82 3.21 1.85 2.32 2.18 0.04 7.16 3.71 5.90 8.20 6.18 16.10 10.84 13.78 4.91 0.69 4.99 3.51 4.32
17 2022-04-30 9.67 0.00 11.31 1.28 5.34 0.01 0.00 12.18 2.94 7.49 2.84 0.21 5.79 3.52 4.58 1.78 0.61 8.67 2.07 6.01 1.37 0.35 2.54 1.70 2.10 2.40 0.04 6.58 4.68 5.64 7.74 7.23 18.29 13.64 16.16 4.91 0.96 4.11 2.54 3.37
18 2022-05-07 11.28 0.00 8.05 0.89 3.95 0.01 0.00 10.20 2.62 6.31 2.34 0.27 4.86 2.78 3.62 2.07 0.08 8.42 3.19 5.85 1.32 0.77 2.89 1.36 2.23 2.55 0.00 6.37 3.14 5.08 7.41 5.63 20.03 12.39 16.31 4.80 0.69 4.00 2.36 3.09
19 2022-05-14 12.58 0.00 8.27 0.90 3.26 0.05 0.00 9.33 2.12 5.72 2.40 0.24 4.61 2.30 3.16 2.71 0.21 9.09 3.67 5.95 1.52 0.98 2.63 1.66 2.07 3.63 0.04 7.46 3.23 4.80 8.36 7.40 21.71 15.70 19.30 4.37 0.86 3.71 1.58 2.36
20 2022-05-21 10.28 0.00 6.42 0.56 2.33 0.07 0.01 7.59 1.12 4.89 2.52 0.18 4.46 1.59 2.66 3.29 0.05 8.60 3.90 6.75 1.68 0.71 3.35 1.79 2.44 4.79 0.14 6.85 2.55 4.99 9.06 8.13 24.52 16.67 19.75 4.53 0.75 3.31 1.87 2.49
21 2022-05-28 9.73 0.01 4.40 0.12 1.67 0.04 0.00 5.43 0.91 3.93 2.25 0.25 4.10 1.23 2.13 3.47 0.25 9.56 6.00 7.27 1.95 1.05 3.51 1.41 2.39 5.69 0.10 6.80 3.22 4.63 10.26 6.36 25.86 16.41 21.07 3.64 1.17 2.37 1.10 1.74
22 2022-06-04 8.38 0.00 2.98 0.29 1.35 0.06 0.00 3.51 0.53 2.51 2.40 0.26 3.72 0.86 1.71 3.32 0.35 8.71 5.94 6.99 1.56 0.82 3.45 1.91 2.79 5.22 0.11 5.39 2.43 3.84 9.14 4.59 23.76 17.55 20.50 3.78 0.69 2.06 0.56 1.23
23 2022-06-11 6.88 0.00 2.55 0.56 1.07 0.13 0.00 2.78 0.32 1.79 2.10 0.18 3.38 0.77 1.56 4.59 0.17 9.74 5.14 6.94 2.26 0.71 2.72 1.69 2.18 5.35 0.06 4.49 2.25 3.18 13.26 6.14 23.65 18.15 21.01 2.93 0.74 1.86 0.47 1.08
24 2022-06-18 4.95 0.02 2.82 0.30 0.93 0.06 0.00 2.11 0.27 1.32 1.95 0.32 3.22 0.50 1.37 4.70 1.52 8.25 5.76 7.01 2.36 1.43 3.80 1.96 2.89 6.29 0.12 3.48 1.85 2.67 14.36 8.01 26.76 20.72 23.68 3.09 0.62 1.54 0.88 1.19
25 2022-06-25 2.90 0.00 2.78 0.32 0.97 0.08 0.00 1.35 0.32 0.91 1.72 0.31 2.91 0.42 1.05 5.78 2.36 7.61 4.34 6.13 1.96 1.49 3.30 1.80 2.63 6.76 0.00 4.18 0.89 2.01 16.13 8.12 26.73 20.65 23.03 3.68 0.49 1.55 0.66 1.09

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 7 510 14 478 1
37 207 28 6 916 11 628 3
38 179 31 14 1,180 17 649 0
39 329 46 7 1,147 17 771 1
40 313 50 6 920 17 867 2
41 374 49 7 743 48 932 6
42 402 102 6 787 36 941 6
43 391 48 15 729 35 1,033 7
44 405 56 30 777 67 1,134 32
45 447 73 29 932 89 1,144 22
46 366 111 44 869 104 1,075 26
47 337 91 48 795 152 1,236 33
48 275 91 72 736 187 1,526 63
49 219 139 69 758 252 1,849 54
50 189 163 64 684 277 2,268 56
51 165 139 66 508 254 2,414 58
52 109 99 52 374 331 1,906 29
1 93 95 37 280 312 1,378 25
2 62 54 18 178 251 926 28
3 34 60 11 133 154 625 9
4 28 53 10 109 126 355 8
5 19 62 10 115 78 325 6
6 18 51 15 128 70 275 6
7 14 48 14 134 66 266 2
8 22 56 16 179 72 241 9
9 19 61 13 233 71 264 14
10 21 62 16 240 83 305 17
11 20 57 18 252 67 346 27
12 34 56 26 289 104 367 93
13 48 80 45 274 110 420 179
14 43 64 54 310 116 446 314
15 52 67 60 315 153 415 511
16 84 72 86 293 155 414 1,079
17 92 74 131 357 186 459 1,738
18 123 82 159 396 184 390 2,092
19 115 69 165 345 145 370 2,223
20 141 76 218 374 144 367 1,705
21 157 93 272 447 105 313 1,567
22 147 73 244 396 108 322 1,323
23 160 84 199 413 87 254 996
24 142 77 205 379 91 215 630
25 163 60 207 395 106 179 375

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 7061 0.04 0.00 625 0.00 0.00 848 0.12 0.00 1305 0.00 0.00 2770 0.04 0.00 1025 0.10 0.00 488 0.00 0.00
36 2021-09-11 7939 0.01 0.00 675 0.00 0.00 1369 0.00 0.00 1224 0.08 0.00 3229 0.00 0.00 930 0.00 0.00 512 0.00 0.00
37 2021-09-18 9256 0.03 0.00 1009 0.00 0.00 1718 0.00 0.00 1543 0.06 0.00 3390 0.06 0.00 985 0.00 0.00 611 0.00 0.00
38 2021-09-25 9725 0.00 0.00 1141 0.00 0.00 1502 0.00 0.00 1647 0.00 0.00 3536 0.00 0.00 1192 0.00 0.00 707 0.00 0.00
39 2021-10-02 9608 0.01 0.00 1052 0.00 0.00 1089 0.00 0.00 1954 0.00 0.00 3415 0.03 0.00 1611 0.00 0.00 487 0.00 0.00
40 2021-10-09 10699 0.00 0.02 799 0.00 0.00 1641 0.00 0.12 2059 0.00 0.00 3793 0.00 0.00 1823 0.00 0.00 584 0.00 0.00
41 2021-10-16 10290 0.03 0.03 614 0.00 0.00 1704 0.00 0.18 1950 0.05 0.00 3540 0.03 0.00 1904 0.05 0.00 578 0.00 0.00
42 2021-10-23 12383 0.03 0.02 634 0.00 0.00 2050 0.00 0.00 2269 0.04 0.00 4435 0.00 0.00 2440 0.08 0.04 555 0.18 0.18
43 2021-10-30 13261 0.03 0.02 1086 0.00 0.00 2119 0.05 0.00 2143 0.00 0.00 4565 0.04 0.00 2920 0.00 0.07 428 0.23 0.23
44 2021-11-06 15353 0.10 0.10 577 0.00 0.00 2323 0.00 0.00 2473 0.04 0.00 4923 0.00 0.00 4625 0.30 0.28 432 0.23 0.69
45 2021-11-13 17330 0.07 0.06 1195 0.00 0.00 2441 0.04 0.00 2835 0.04 0.00 5062 0.06 0.00 5054 0.14 0.18 743 0.00 0.13
46 2021-11-20 16221 0.10 0.06 1826 0.00 0.00 2261 0.00 0.04 2619 0.19 0.00 4733 0.04 0.00 4339 0.21 0.18 443 0.23 0.00
47 2021-11-27 16701 0.13 0.07 2042 0.05 0.05 2584 0.12 0.04 2979 0.10 0.00 4626 0.00 0.00 4200 0.33 0.24 270 0.00 0.00
48 2021-12-04 18356 0.19 0.15 3195 0.13 0.09 2471 0.08 0.04 3068 0.16 0.00 4556 0.04 0.00 4846 0.45 0.50 220 0.00 0.00
49 2021-12-11 19816 0.23 0.05 3417 0.09 0.00 2880 0.31 0.14 3420 0.23 0.00 4620 0.24 0.00 5172 0.27 0.10 307 0.00 0.00
50 2021-12-18 22397 0.23 0.02 1860 0.27 0.00 2759 0.14 0.00 3883 0.21 0.00 4732 0.11 0.02 8638 0.35 0.03 525 0.00 0.00
51 2021-12-25 28377 0.18 0.02 1238 0.00 0.00 3049 0.59 0.07 4030 0.07 0.00 5230 0.15 0.00 14257 0.16 0.02 573 0.00 0.17
52 2022-01-01 29528 0.09 0.01 1378 0.29 0.00 2560 0.00 0.00 3665 0.14 0.00 6257 0.13 0.02 13696 0.07 0.01 1972 0.00 0.00
1 2022-01-08 28332 0.08 0.00 967 0.00 0.00 2249 0.18 0.00 3668 0.03 0.00 7645 0.17 0.00 11791 0.05 0.01 2012 0.00 0.00
2 2022-01-15 23595 0.11 0.01 1045 0.19 0.00 1400 0.21 0.00 2903 0.03 0.00 6752 0.16 0.00 9996 0.08 0.03 1499 0.00 0.00
3 2022-01-22 19510 0.04 0.01 1195 0.00 0.00 1223 0.16 0.00 2591 0.00 0.08 5562 0.07 0.00 8275 0.01 0.00 664 0.00 0.00
4 2022-01-29 16409 0.05 0.00 1099 0.00 0.00 1136 0.26 0.00 2367 0.00 0.00 4563 0.07 0.00 6638 0.03 0.00 606 0.00 0.00
5 2022-02-05 15927 0.03 0.01 1058 0.00 0.00 844 0.12 0.00 2126 0.00 0.05 3954 0.10 0.00 6671 0.00 0.00 1274 0.00 0.00
6 2022-02-12 13843 0.04 0.01 1069 0.00 0.00 985 0.10 0.00 1981 0.00 0.00 2995 0.03 0.00 5917 0.05 0.02 896 0.00 0.00
7 2022-02-19 13103 0.02 0.00 1094 0.00 0.00 832 0.00 0.00 1941 0.05 0.00 2721 0.04 0.00 5451 0.00 0.00 1064 0.00 0.00
8 2022-02-26 12142 0.06 0.02 1177 0.00 0.00 875 0.34 0.11 1736 0.17 0.00 2419 0.04 0.00 5256 0.00 0.02 679 0.00 0.00
9 2022-03-05 11235 0.12 0.00 1090 0.00 0.00 911 0.00 0.00 1843 0.11 0.00 2603 0.38 0.00 4242 0.05 0.00 546 0.00 0.00
10 2022-03-12 10704 0.16 0.00 1108 0.00 0.00 1040 0.29 0.00 1763 0.06 0.00 2556 0.35 0.00 3713 0.11 0.00 524 0.00 0.00
11 2022-03-19 10168 0.26 0.01 1097 0.00 0.00 902 0.44 0.00 1652 0.24 0.00 2581 0.54 0.00 3617 0.11 0.03 319 0.00 0.00
12 2022-03-26 10754 0.86 0.00 1247 0.08 0.00 1186 0.93 0.00 1766 0.28 0.00 2685 1.94 0.00 3491 0.66 0.00 379 0.26 0.00
13 2022-04-02 11757 1.52 0.00 1324 0.30 0.00 1484 3.44 0.00 1894 1.11 0.00 3216 2.46 0.00 3668 0.63 0.00 171 0.58 0.00
14 2022-04-09 12637 2.48 0.01 1272 0.63 0.08 1644 6.93 0.00 1874 1.17 0.00 4065 3.17 0.00 3620 0.91 0.00 162 4.32 0.00
15 2022-04-16 13239 3.84 0.02 1093 1.65 0.00 1896 11.45 0.05 1905 2.10 0.05 4089 4.23 0.00 4116 1.09 0.00 140 11.43 0.00
16 2022-04-23 15435 6.98 0.01 1429 1.89 0.00 3060 19.61 0.03 1859 1.83 0.00 4531 6.51 0.00 4348 1.86 0.02 208 19.23 0.00
17 2022-04-30 17960 9.67 0.01 1738 5.01 0.06 4691 20.49 0.02 2162 4.12 0.00 4721 9.28 0.00 4427 2.58 0.00 221 21.27 0.00
18 2022-05-07 18525 11.28 0.01 2674 5.31 0.00 4751 26.56 0.04 2183 3.39 0.00 4475 10.30 0.00 4182 2.18 0.00 260 23.08 0.00
19 2022-05-14 17606 12.58 0.05 1509 7.09 0.13 5434 24.22 0.11 2065 6.44 0.00 4435 10.46 0.00 3886 2.44 0.00 277 36.10 0.00
20 2022-05-21 16463 10.28 0.07 1528 7.53 0.00 4707 17.08 0.25 2117 5.67 0.00 4105 11.52 0.00 3699 2.87 0.00 307 24.43 0.00
21 2022-05-28 16036 9.73 0.04 2019 6.24 0.00 4551 15.36 0.11 1986 4.98 0.00 3762 11.43 0.03 3500 3.34 0.00 218 41.28 0.00
22 2022-06-04 15683 8.38 0.06 2143 7.00 0.00 4607 11.87 0.20 1876 4.48 0.00 3489 9.26 0.00 3274 3.88 0.00 294 28.23 0.00
23 2022-06-11 14192 6.88 0.13 1615 8.98 0.00 4924 7.35 0.37 1183 3.55 0.08 3248 7.85 0.00 2979 3.83 0.00 243 24.28 0.00
24 2022-06-18 12567 4.95 0.06 1178 14.09 0.00 4333 4.87 0.16 1162 1.98 0.00 2904 4.27 0.00 2805 2.42 0.04 185 16.22 0.00
25 2022-06-25 12570 2.90 0.08 1199 6.26 0.00 4679 2.78 0.21 1261 1.27 0.00 2519 2.98 0.00 2771 2.20 0.00 141 5.67 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 6454 4.43 613 0.00 693 37.95 1277 1.49 2358 0.04 1025 0.29 488 0.00
36 2021-09-11 7239 6.60 671 0.60 1069 39.85 1187 3.12 2798 0.14 930 0.54 584 0.34
37 2021-09-18 8274 7.59 997 0.40 1310 40.76 1499 5.07 2872 0.24 985 0.71 611 0.00
38 2021-09-25 9062 7.16 1135 0.00 1356 41.67 1612 3.97 3061 0.26 1192 1.01 706 0.00
39 2021-10-02 9089 8.48 1052 0.10 1104 53.53 1913 7.42 2923 0.44 1611 1.49 486 0.00
40 2021-10-09 10161 8.53 792 0.38 1583 39.36 2015 9.43 3364 0.65 1823 1.59 584 0.00
41 2021-10-16 9770 9.54 608 0.16 1676 42.78 1867 8.36 3136 0.61 1904 2.00 579 0.17
42 2021-10-23 11504 8.18 581 0.17 1845 33.88 2199 9.55 3884 0.85 2440 2.95 555 0.00
43 2021-10-30 12736 8.11 965 0.10 2121 31.02 2105 9.88 4197 0.88 2920 4.35 428 0.47
44 2021-11-06 14503 7.82 564 1.24 2048 26.46 2421 10.45 4429 1.45 4612 5.77 429 0.47
45 2021-11-13 16275 7.03 837 0.84 2239 18.49 2767 9.97 4670 1.50 5024 7.48 738 0.14
46 2021-11-20 14979 7.18 1259 2.54 2064 12.74 2556 13.38 4345 1.91 4312 8.23 443 0.00
47 2021-11-27 15253 8.10 1607 2.68 2132 11.16 2907 13.62 4177 3.26 4160 10.17 270 0.00
48 2021-12-04 17101 8.92 2884 2.67 2164 8.27 3002 14.69 4026 3.80 4806 13.82 219 5.48
49 2021-12-11 18330 10.09 2979 3.63 2519 6.95 3354 19.11 4038 5.08 5134 13.63 306 6.54
50 2021-12-18 21031 10.78 1442 8.18 2354 5.61 3813 15.53 4286 6.07 8611 13.10 525 7.24
51 2021-12-25 26921 8.97 947 6.65 2467 4.82 4029 13.73 4650 7.91 14257 8.86 571 8.41
52 2022-01-01 28356 6.72 1378 4.43 1916 3.60 3664 10.15 5542 7.89 13884 6.64 1972 2.28
1 2022-01-08 26185 5.26 983 6.61 1708 2.93 3668 5.97 6387 5.10 11428 5.90 2011 2.19
2 2022-01-15 21432 4.32 824 6.67 1142 2.10 2903 4.79 5758 4.10 9306 4.82 1499 1.53
3 2022-01-22 18272 3.42 1187 3.54 947 1.37 2591 3.24 5028 3.30 7814 3.90 705 2.13
4 2022-01-29 15236 2.33 935 3.32 827 1.21 2367 1.61 4146 3.30 6356 2.03 605 1.65
5 2022-02-05 14854 2.19 859 1.51 667 1.05 2124 1.65 3573 3.16 6395 2.17 1236 1.46
6 2022-02-12 13108 2.10 998 1.70 749 1.47 1980 0.91 2701 4.44 5784 1.64 896 1.56
7 2022-02-19 12301 2.16 997 1.60 539 0.74 1940 0.98 2449 5.39 5366 1.60 1010 0.89
8 2022-02-26 11383 2.12 1018 1.57 581 0.34 1735 1.21 2164 5.04 5206 1.67 679 0.88
9 2022-03-05 10559 2.50 982 1.83 734 0.95 1843 1.03 2339 5.81 4115 1.92 546 0.92
10 2022-03-12 9854 3.10 914 1.86 720 0.42 1763 1.08 2324 8.09 3609 1.94 524 1.53
11 2022-03-19 9332 3.71 894 2.80 708 0.85 1652 1.27 2280 9.12 3479 2.07 319 4.39
12 2022-03-26 9678 3.79 1027 1.27 828 0.36 1765 0.96 2336 10.96 3343 1.76 379 5.01
13 2022-04-02 10506 4.00 1114 0.81 1012 0.10 1894 0.63 2870 10.77 3448 1.97 168 12.50
14 2022-04-09 11013 4.05 890 1.01 1105 0.18 1873 0.64 3569 9.47 3416 1.90 160 12.50
15 2022-04-16 12005 3.46 1063 1.98 1430 0.21 1908 1.21 3506 8.81 3960 1.21 138 7.97
16 2022-04-23 13952 2.97 1336 1.27 2447 0.12 1864 0.43 4000 7.65 4098 1.49 207 9.18
17 2022-04-30 16143 2.84 1657 1.33 3738 0.27 2162 1.43 4142 7.56 4223 1.47 221 9.50
18 2022-05-07 16651 2.34 2374 0.97 3807 0.13 2183 0.78 3988 6.42 4039 1.36 260 13.08
19 2022-05-14 15413 2.40 1438 1.32 3959 0.13 2065 0.77 3932 5.44 3743 1.66 276 19.57
20 2022-05-21 14561 2.52 1419 1.69 3481 0.14 2117 1.13 3539 4.92 3699 1.62 306 26.14
21 2022-05-28 13922 2.25 1836 1.31 3205 0.16 1985 1.21 3332 3.78 3346 1.52 218 38.07
22 2022-06-04 13431 2.40 1995 2.01 3026 0.20 1876 1.76 3063 4.44 3177 1.48 294 20.41
23 2022-06-11 12076 2.10 1507 1.86 3360 0.27 1183 1.61 2888 3.19 2896 1.66 242 23.97
24 2022-06-18 11042 1.95 1038 2.12 3298 0.24 1163 1.63 2633 3.23 2725 1.43 185 22.70
25 2022-06-25 10380 1.72 1064 2.54 2981 0.77 1260 1.51 2240 1.92 2694 1.26 141 23.40

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 2638 5.99 580 1.38 138 5.07 857 14.47 740 1.89 315 1.59
36 2021-09-11 2882 4.93 653 2.91 149 4.03 805 11.55 953 1.57 317 2.84
37 2021-09-18 3467 5.97 978 3.89 139 0.72 1100 10.73 858 3.03 386 6.22
38 2021-09-25 3783 4.73 1083 3.69 222 0.45 1113 8.18 857 2.33 506 5.34
39 2021-10-02 4051 8.12 1070 4.86 232 1.72 1461 13.07 766 5.87 517 7.16
40 2021-10-09 3822 8.19 721 6.38 314 1.27 1542 12.39 717 5.58 524 6.11
41 2021-10-16 3574 10.46 543 6.45 335 0.90 1461 13.76 725 7.31 510 16.08
42 2021-10-23 4016 10.01 628 5.41 454 0.44 1631 11.77 768 8.20 531 20.90
43 2021-10-30 4170 9.38 822 2.92 414 0.97 1541 11.29 778 8.10 608 20.72
44 2021-11-06 3941 10.28 415 10.84 293 0.34 1690 10.00 834 8.27 708 17.09
45 2021-11-13 4484 9.97 708 6.78 317 0.95 1772 8.47 865 9.71 819 19.78
46 2021-11-20 4413 8.29 597 4.02 349 0.57 1735 6.80 975 9.33 756 17.33
47 2021-11-27 4786 7.04 575 4.35 475 0.84 1968 5.95 1057 7.85 709 15.23
48 2021-12-04 4761 5.78 668 3.29 355 1.13 2055 3.94 953 7.66 723 13.14
49 2021-12-11 5520 3.97 684 1.02 317 0.63 2722 2.94 1063 7.34 733 7.09
50 2021-12-18 5852 3.23 677 2.51 356 1.69 3058 1.60 1020 6.18 741 7.29
51 2021-12-25 5476 3.01 311 0.64 383 3.39 3031 1.55 997 6.12 751 5.59
52 2022-01-01 5124 2.13 132 1.52 287 0.35 2746 0.87 1198 3.92 760 4.61
1 2022-01-08 5049 1.84 59 1.69 228 1.32 2757 0.62 1439 2.64 558 5.91
2 2022-01-15 5216 1.19 66 3.03 776 0.26 2166 0.32 1609 1.55 597 4.36
3 2022-01-22 4459 0.76 202 0.50 196 1.02 1892 0.26 1414 1.27 753 1.06
4 2022-01-29 4392 0.64 144 1.39 208 0.48 1846 0.27 1426 0.84 766 1.04
5 2022-02-05 3959 0.48 193 1.04 169 0.00 1623 0.12 1255 0.32 715 1.54
6 2022-02-12 3514 0.51 188 0.53 214 0.00 1486 0.20 972 0.51 651 1.38
7 2022-02-19 3164 0.44 233 0.00 166 0.60 1397 0.29 807 0.74 557 0.54
8 2022-02-26 3003 0.73 253 0.00 175 1.14 1262 0.16 732 1.09 579 1.73
9 2022-03-05 3181 0.60 206 0.49 190 1.05 1349 0.15 909 0.66 523 1.53
10 2022-03-12 3105 0.68 243 0.00 195 2.05 1266 0.16 864 0.58 531 1.69
11 2022-03-19 3039 0.66 245 0.82 245 0.41 1187 0.25 902 1.00 460 1.09
12 2022-03-26 3251 1.05 205 1.46 258 1.16 1288 0.78 914 0.55 580 2.24
13 2022-04-02 3445 1.39 227 1.32 251 3.59 1363 0.37 1025 1.27 577 3.12
14 2022-04-09 3648 1.18 196 1.53 332 3.01 1286 0.31 1284 1.64 544 0.92
15 2022-04-16 3855 1.35 206 1.46 419 3.10 1229 0.49 1306 1.99 694 0.58
16 2022-04-23 3829 2.19 277 0.36 273 6.59 1244 1.05 1370 2.48 660 2.58
17 2022-04-30 5180 1.78 849 2.36 630 1.27 1499 1.00 1429 2.17 769 2.34
18 2022-05-07 5951 2.07 1584 3.35 708 2.12 1401 0.71 1465 2.25 788 1.52
19 2022-05-14 4251 2.71 470 3.40 237 4.64 1412 1.13 1421 3.10 706 3.97
20 2022-05-21 4280 3.29 584 3.42 251 5.98 1460 2.53 1198 3.51 779 3.47
21 2022-05-28 4525 3.47 1090 4.86 191 6.81 1334 2.02 1122 3.12 775 3.48
22 2022-06-04 4432 3.32 1138 3.69 204 2.94 1230 2.60 1126 4.09 724 2.76
23 2022-06-11 3489 4.59 696 4.17 406 5.17 595 5.04 1132 5.21 651 3.23
24 2022-06-18 3023 4.70 267 3.37 406 6.65 589 6.45 1067 4.40 690 2.90
25 2022-06-25 2819 5.78 284 4.23 396 8.59 622 5.14 1000 6.90 514 3.11

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 2630 1.18 573 1.05 137 4.38 857 1.52 740 0.54 315 0.32
36 2021-09-11 2880 1.15 653 0.61 147 4.76 805 1.61 953 0.63 317 0.95
37 2021-09-18 3469 0.81 980 0.51 138 0.00 1101 1.45 858 0.23 386 1.04
38 2021-09-25 3780 0.82 1083 0.46 219 2.28 1113 0.54 857 0.47 506 2.17
39 2021-10-02 4052 1.14 1071 0.28 232 3.45 1461 1.37 766 1.17 517 1.16
40 2021-10-09 3821 1.31 721 0.14 314 1.91 1542 1.95 716 1.68 524 0.19
41 2021-10-16 3574 1.37 543 0.18 335 5.07 1461 1.57 725 0.97 510 0.20
42 2021-10-23 4017 2.54 628 0.00 455 11.87 1631 2.33 768 0.91 531 0.56
43 2021-10-30 4187 1.15 836 0.12 417 3.12 1541 1.56 778 1.03 608 0.33
44 2021-11-06 3941 1.42 415 0.96 293 1.02 1690 1.60 834 1.44 708 1.41
45 2021-11-13 4481 1.63 705 0.71 317 6.62 1772 1.47 865 1.16 819 1.22
46 2021-11-20 4421 2.51 598 0.50 356 7.30 1735 2.25 975 2.05 756 3.04
47 2021-11-27 4692 1.94 576 0.69 380 3.68 1968 2.69 1057 0.76 709 1.69
48 2021-12-04 4809 1.89 668 0.75 403 4.71 2055 1.95 953 1.47 723 1.80
49 2021-12-11 5614 2.48 684 0.88 411 4.87 2722 3.23 1063 1.03 733 1.91
50 2021-12-18 5998 2.72 677 0.74 503 6.56 3058 2.88 1019 1.67 741 2.70
51 2021-12-25 5474 2.54 314 1.59 378 7.41 3031 2.18 997 1.20 751 3.73
52 2022-01-01 5163 1.92 133 3.76 324 5.56 2747 1.49 1198 1.25 760 2.63
1 2022-01-08 5163 1.84 105 3.81 296 7.43 2757 1.38 1439 0.83 558 3.41
2 2022-01-15 4760 1.13 66 1.52 320 2.19 2167 0.51 1608 1.24 597 2.51
3 2022-01-22 4494 1.34 200 0.50 234 5.98 1892 1.16 1413 0.71 753 1.73
4 2022-01-29 4497 1.18 144 0.69 313 3.19 1846 1.14 1426 0.56 766 1.70
5 2022-02-05 3959 1.57 193 3.63 169 6.51 1623 1.42 1255 0.72 715 1.68
6 2022-02-12 3539 1.44 188 1.60 239 5.02 1486 1.14 972 0.62 651 2.00
7 2022-02-19 3164 1.52 233 2.58 166 7.83 1397 0.72 807 0.99 557 1.97
8 2022-02-26 3035 1.85 254 1.97 205 8.29 1263 0.87 732 1.78 579 1.73
9 2022-03-05 3207 1.90 207 1.93 215 7.44 1349 1.26 909 1.10 523 2.68
10 2022-03-12 3139 1.98 243 0.41 229 7.86 1266 1.11 864 1.74 531 2.64
11 2022-03-19 3039 1.88 245 1.63 245 4.90 1187 0.84 902 2.33 460 2.17
12 2022-03-26 3283 1.71 205 0.49 290 3.45 1288 1.40 914 1.97 580 1.55
13 2022-04-02 3485 2.30 227 0.44 291 8.93 1363 1.10 1025 1.95 577 3.12
14 2022-04-09 3688 1.74 196 1.53 372 4.84 1286 1.24 1284 1.17 544 2.21
15 2022-04-16 3918 1.71 206 2.43 483 2.48 1229 1.30 1305 1.38 694 2.31
16 2022-04-23 3918 1.84 277 1.08 364 4.95 1244 1.21 1368 1.39 660 2.58
17 2022-04-30 5402 1.37 848 0.59 852 2.82 1499 0.80 1430 1.26 769 1.82
18 2022-05-07 6211 1.32 1585 0.25 967 2.79 1401 1.36 1465 1.16 788 1.90
19 2022-05-14 4527 1.52 470 1.70 514 2.33 1412 1.42 1420 0.85 706 2.41
20 2022-05-21 4528 1.68 584 0.51 498 4.62 1461 1.10 1198 1.09 779 2.57
21 2022-05-28 4775 1.95 1090 0.37 440 5.23 1335 1.65 1122 2.14 775 2.58
22 2022-06-04 4680 1.56 1144 0.61 446 2.47 1230 1.87 1126 1.69 724 1.66
23 2022-06-11 3716 2.26 696 1.15 632 5.06 597 2.35 1131 1.77 651 1.54
24 2022-06-18 3259 2.36 267 1.87 641 3.74 589 2.04 1068 1.50 690 2.90
25 2022-06-25 3066 1.96 284 1.06 643 3.42 622 1.77 1000 1.60 514 1.56

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 2666 0.23 580 0.00 138 2.17 832 0.36 793 0.00 315 0.00
36 2021-09-11 2933 0.24 653 0.00 149 0.67 796 0.50 1013 0.20 317 0.00
37 2021-09-18 3488 0.17 978 0.00 138 1.45 1073 0.19 907 0.11 386 0.26
38 2021-09-25 3810 0.37 1083 0.00 219 1.83 1086 0.74 914 0.00 506 0.40
39 2021-10-02 4058 0.17 1070 0.00 232 0.86 1428 0.21 810 0.00 513 0.39
40 2021-10-09 3768 0.16 721 0.00 238 1.26 1503 0.20 778 0.00 524 0.00
41 2021-10-16 3495 0.20 543 0.18 229 0.87 1436 0.07 777 0.00 510 0.59
42 2021-10-23 3876 0.15 628 0.00 276 0.36 1611 0.12 826 0.00 531 0.56
43 2021-10-30 4115 0.36 836 0.00 313 3.51 1510 0.13 841 0.24 608 0.00
44 2021-11-06 3902 0.77 415 0.00 210 6.19 1663 0.24 905 0.33 708 1.41
45 2021-11-13 4538 0.64 705 0.14 325 4.92 1742 0.17 944 0.21 819 0.85
46 2021-11-20 4435 0.99 597 0.17 349 8.02 1704 0.35 1028 0.49 756 0.53
47 2021-11-27 4738 1.01 575 0.52 380 8.68 1968 0.46 1104 0.00 709 0.42
48 2021-12-04 4868 1.48 668 0.45 403 12.90 2055 0.44 1012 0.30 723 0.69
49 2021-12-11 5658 1.22 684 0.88 411 9.98 2721 0.55 1108 0.54 733 0.14
50 2021-12-18 5920 1.08 677 0.30 397 11.08 3057 0.46 1048 0.38 741 0.00
51 2021-12-25 5508 1.20 311 2.89 378 12.17 3031 0.13 1034 0.29 751 0.53
52 2022-01-01 5190 1.00 132 1.52 321 10.28 2746 0.36 1230 0.16 760 0.66
1 2022-01-08 5173 0.72 101 1.98 295 8.14 2757 0.07 1454 0.21 558 1.08
2 2022-01-15 4796 0.38 66 4.55 320 0.94 2166 0.14 1645 0.43 597 0.34
3 2022-01-22 4500 0.24 202 0.00 227 3.08 1890 0.00 1426 0.21 753 0.13
4 2022-01-29 4429 0.23 144 1.39 228 1.32 1846 0.16 1443 0.14 766 0.00
5 2022-02-05 4038 0.25 193 2.07 233 0.86 1623 0.12 1270 0.08 715 0.14
6 2022-02-12 3549 0.42 188 2.13 239 2.51 1486 0.07 982 0.20 651 0.31
7 2022-02-19 3180 0.44 233 0.86 166 4.22 1397 0.00 823 0.61 557 0.00
8 2022-02-26 3038 0.53 253 0.79 205 3.41 1259 0.08 740 0.68 579 0.17
9 2022-03-05 3234 0.40 206 0.00 235 2.13 1348 0.07 918 0.65 523 0.19
10 2022-03-12 3152 0.51 243 0.41 230 1.74 1266 0.24 876 0.80 531 0.19
11 2022-03-19 3046 0.59 245 1.22 245 1.63 1186 0.00 910 0.66 460 1.09
12 2022-03-26 3367 0.77 205 1.46 367 1.09 1287 0.23 922 1.08 580 1.03
13 2022-04-02 3503 1.28 227 2.20 291 1.72 1363 0.95 1043 1.53 577 1.04
14 2022-04-09 3732 1.45 196 3.57 372 1.88 1285 1.25 1329 1.66 544 0.37
15 2022-04-16 3949 1.52 206 1.46 483 1.86 1225 1.71 1340 1.49 694 1.01
16 2022-04-23 3938 2.18 277 2.17 363 2.20 1237 1.70 1396 2.72 660 1.97
17 2022-04-30 5459 2.40 849 2.36 857 1.75 1496 1.87 1484 3.23 769 2.60
18 2022-05-07 6241 2.55 1584 1.01 967 1.03 1401 3.43 1496 4.01 788 3.17
19 2022-05-14 4551 3.63 470 3.19 514 3.11 1412 4.04 1444 3.53 706 3.68
20 2022-05-21 4550 4.79 584 3.42 497 3.62 1454 6.33 1228 4.97 779 3.47
21 2022-05-28 4779 5.69 1090 1.83 441 3.40 1332 8.41 1128 6.12 775 7.23
22 2022-06-04 4676 5.22 1144 2.71 445 3.15 1230 8.05 1123 4.10 724 7.46
23 2022-06-11 3721 5.35 696 2.73 633 1.90 594 8.59 1138 6.50 651 6.61
24 2022-06-18 3259 6.29 267 6.74 639 1.88 589 9.85 1070 5.14 690 8.99
25 2022-06-25 3062 6.76 284 5.28 641 1.56 621 10.79 999 5.51 514 11.67

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 2536 21.96 580 21.21 N.A. N.A. 857 26.49 740 21.49 311 14.15
36 2021-09-11 2743 18.59 653 15.62 N.A. N.A. 805 21.24 953 18.68 311 18.01
37 2021-09-18 3336 27.46 978 33.44 N.A. N.A. 1104 27.72 858 22.26 378 23.02
38 2021-09-25 3555 33.19 1083 43.40 N.A. N.A. 1113 31.63 854 25.29 497 27.97
39 2021-10-02 3822 30.01 1070 32.52 N.A. N.A. 1461 32.44 766 21.28 513 30.99
40 2021-10-09 3504 26.26 721 17.48 N.A. N.A. 1542 33.01 715 23.92 515 21.75
41 2021-10-16 3243 22.91 543 16.21 N.A. N.A. 1461 27.24 725 15.17 502 28.88
42 2021-10-23 3552 22.16 628 11.78 N.A. N.A. 1631 25.32 766 21.93 515 25.05
43 2021-10-30 3711 19.64 836 7.06 N.A. N.A. 1540 24.68 777 19.18 539 25.97
44 2021-11-06 3623 21.45 415 16.39 N.A. N.A. 1675 23.28 834 17.99 689 24.38
45 2021-11-13 4162 22.39 709 12.83 N.A. N.A. 1766 27.18 865 21.04 812 21.55
46 2021-11-20 4067 21.37 597 13.57 N.A. N.A. 1735 23.34 975 21.85 743 22.21
47 2021-11-27 4287 18.54 575 11.83 N.A. N.A. 1951 21.78 1055 16.11 694 18.88
48 2021-12-04 4423 16.64 668 10.93 N.A. N.A. 2053 18.56 952 15.44 708 17.23
49 2021-12-11 5204 14.57 684 11.11 N.A. N.A. 2713 14.19 1061 14.80 716 18.30
50 2021-12-18 5516 12.40 677 7.68 N.A. N.A. 3058 10.99 1014 13.31 734 20.57
51 2021-12-25 5104 9.95 311 9.00 N.A. N.A. 3031 7.06 997 12.04 733 18.55
52 2022-01-01 4852 7.71 132 11.36 N.A. N.A. 2746 5.39 1196 9.95 747 11.91
1 2022-01-08 4902 5.71 104 6.73 N.A. N.A. 2757 2.76 1439 7.23 544 15.26
2 2022-01-15 4471 3.98 66 1.52 N.A. N.A. 2166 1.85 1608 4.54 588 10.37
3 2022-01-22 4258 3.12 202 2.97 N.A. N.A. 1892 1.48 1396 4.23 732 5.19
4 2022-01-29 4199 2.60 144 1.39 N.A. N.A. 1846 1.08 1421 3.45 753 5.05
5 2022-02-05 3806 3.02 193 1.55 N.A. N.A. 1623 1.79 1247 4.49 700 3.71
6 2022-02-12 3316 3.86 188 1.06 N.A. N.A. 1486 2.49 971 4.63 645 6.82
7 2022-02-19 3007 4.46 233 0.43 N.A. N.A. 1397 3.08 799 3.88 553 10.13
8 2022-02-26 2837 6.31 253 1.98 N.A. N.A. 1262 5.07 728 6.59 571 10.51
9 2022-03-05 2989 7.80 206 6.80 N.A. N.A. 1349 6.15 895 7.93 514 12.45
10 2022-03-12 2912 8.24 243 5.35 N.A. N.A. 1266 6.08 850 9.18 523 13.38
11 2022-03-19 2808 8.97 245 7.35 N.A. N.A. 1187 7.67 888 9.91 452 12.17
12 2022-03-26 3035 9.52 205 3.41 N.A. N.A. 1288 6.75 897 11.93 572 14.51
13 2022-04-02 3228 8.49 227 9.25 N.A. N.A. 1363 7.34 1008 9.03 562 10.68
14 2022-04-09 3351 9.25 196 8.16 N.A. N.A. 1286 7.54 1266 10.66 530 10.57
15 2022-04-16 3447 9.14 206 12.62 N.A. N.A. 1229 6.35 1295 8.49 682 14.52
16 2022-04-23 3573 8.20 277 7.94 N.A. N.A. 1244 6.19 1348 7.79 645 12.40
17 2022-04-30 4611 7.74 849 7.07 N.A. N.A. 1499 7.47 1412 7.72 757 8.59
18 2022-05-07 5341 7.41 1584 6.44 N.A. N.A. 1401 6.85 1453 7.78 780 10.13
19 2022-05-14 4128 8.36 470 5.11 N.A. N.A. 1412 6.94 1404 8.40 701 12.98
20 2022-05-21 4127 9.06 584 5.82 N.A. N.A. 1460 7.67 1184 10.30 773 11.77
21 2022-05-28 4356 10.26 1090 8.35 N.A. N.A. 1334 9.07 1099 13.47 764 10.86
22 2022-06-04 4332 9.14 1204 7.39 N.A. N.A. 1230 7.48 1102 10.80 705 12.48
23 2022-06-11 3114 13.26 696 11.21 N.A. N.A. 595 12.77 1118 12.70 640 16.41
24 2022-06-18 2639 14.36 267 11.24 N.A. N.A. 589 14.43 1054 13.85 680 16.62
25 2022-06-25 2449 16.13 284 9.15 N.A. N.A. 622 15.59 988 17.61 504 18.25

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 1993 1.05 98 0.00 138 0.00 645 1.71 793 1.01 311 0.64
36 2021-09-11 2260 0.62 202 0.00 149 0.00 584 1.03 1013 0.69 307 0.33
37 2021-09-18 2477 0.44 247 0.40 131 0.00 809 0.49 906 0.55 378 0.26
38 2021-09-25 2552 0.67 130 0.00 221 0.00 788 1.14 914 0.88 497 0.00
39 2021-10-02 2722 0.62 120 0.00 232 0.43 1042 0.38 810 1.48 513 0.00
40 2021-10-09 2986 0.57 332 0.30 238 0.00 1118 0.81 779 0.77 515 0.19
41 2021-10-16 2844 1.69 250 1.60 335 0.90 1032 1.55 725 2.90 502 0.80
42 2021-10-23 3350 1.07 353 0.28 453 0.22 1200 1.33 826 1.82 515 0.58
43 2021-10-30 3332 1.05 601 0.67 313 0.64 1042 1.34 778 1.80 593 0.17
44 2021-11-06 3028 2.21 154 3.90 210 2.38 1069 1.87 905 3.65 689 0.44
45 2021-11-13 3465 2.57 326 0.92 317 0.32 1142 2.19 865 6.82 812 0.12
46 2021-11-20 3478 2.99 310 2.90 349 0.86 1047 2.77 1028 4.77 743 1.88
47 2021-11-27 3897 3.90 305 3.61 475 1.47 1317 3.80 1104 6.79 694 1.30
48 2021-12-04 3785 4.94 368 4.89 465 1.94 1225 4.90 1012 8.89 708 1.41
49 2021-12-11 3830 6.58 369 5.42 356 1.97 1281 7.18 1108 11.01 715 1.54
50 2021-12-18 3815 7.26 356 6.18 496 3.02 1181 9.31 1048 10.11 734 3.27
51 2021-12-25 3131 8.11 69 10.14 378 2.91 914 10.83 1034 9.96 733 4.64
52 2022-01-01 3204 10.33 124 14.52 320 2.50 782 14.58 1230 11.54 747 6.56
1 2022-01-08 3367 9.27 99 4.04 296 8.45 966 10.87 1454 9.42 544 7.54
2 2022-01-15 3364 7.46 59 3.39 412 1.21 657 11.26 1646 8.75 588 4.42
3 2022-01-22 3100 4.97 186 1.08 226 2.65 529 6.43 1425 6.32 732 3.01
4 2022-01-29 3211 3.92 108 0.00 312 3.21 593 6.24 1443 4.92 753 1.06
5 2022-02-05 2755 2.83 68 1.47 233 2.15 480 3.33 1270 3.15 700 2.29
6 2022-02-12 2329 3.01 84 0.00 239 1.26 376 3.72 982 3.67 645 2.64
7 2022-02-19 2038 3.24 100 0.00 201 1.00 357 3.64 823 4.37 553 2.71
8 2022-02-26 1962 3.67 124 0.81 194 2.06 331 4.83 740 2.16 571 6.13
9 2022-03-05 2137 3.32 106 0.94 208 0.48 387 6.72 918 2.29 514 4.28
10 2022-03-12 2149 3.86 104 0.96 274 1.09 365 4.93 877 2.96 523 6.69
11 2022-03-19 2064 3.25 104 2.88 275 0.73 321 5.30 912 2.85 452 4.20
12 2022-03-26 2376 4.38 83 1.20 363 1.93 431 5.57 922 3.15 571 7.36
13 2022-04-02 2470 4.45 83 1.20 328 2.13 450 5.78 1045 2.68 562 8.54
14 2022-04-09 2735 4.24 83 6.02 318 4.09 468 3.85 1330 3.38 530 6.60
15 2022-04-16 3076 4.97 105 6.67 465 3.44 484 6.40 1339 2.76 682 9.09
16 2022-04-23 3156 4.91 197 2.03 327 6.73 586 5.97 1396 3.08 645 7.91
17 2022-04-30 3789 4.91 102 4.90 723 5.26 720 5.83 1483 2.56 757 8.32
18 2022-05-07 3837 4.80 91 4.40 801 3.87 664 8.13 1496 2.47 780 7.44
19 2022-05-14 3315 4.37 122 4.92 384 5.47 667 6.60 1438 2.36 701 5.71
20 2022-05-21 3177 4.53 142 8.45 362 3.59 667 7.05 1228 2.12 773 5.95
21 2022-05-28 2883 3.64 134 1.49 304 7.24 541 4.25 1132 2.12 764 4.45
22 2022-06-04 2859 3.78 146 4.79 324 5.25 581 6.20 1127 2.57 675 2.81
23 2022-06-11 2970 2.93 153 3.27 503 3.18 525 5.33 1140 1.75 640 2.81
24 2022-06-18 2942 3.09 131 0.76 526 3.80 531 4.90 1070 2.24 680 2.94
25 2022-06-25 2883 3.68 277 4.69 532 3.38 566 9.54 1001 1.20 504 1.79

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