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Respiratory Virus Report, Week 52 - ending December 31, 2022

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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 52 (week ending December 31, 2022) in Canada, participating RVDSS laboratories reported 10,866 detections of SARS-CoV-2 from 69,601 tests (15.6% positive). Among non-SARS-CoV-2 respiratory viruses, where test volumes are lower (range of 9,210 to 33,205 tests), influenza and respiratory syncytial virus (RSV) continue to co-circulate.

  • Activity of influenza is decreasing sharply. Influenza A accounts for nearly all influenza detections in Canada, and activity of influenza A is now below average levels typical of this time of year (2,818 detections; 8.5% positive)
  • Activity of RSV is following seasonal trends at the national level. Compared to pre-pandemic seasons, RSV activity is near average levels typical of this time of year (3,028 detections; 10.0% positive).
  • Activity of most other non-SARS-CoV-2 respiratory viruses is near expected levels typical of this time of year.
  • 33/35 sentinel laboratories reported surveillance data.
    • Data for weeks 51 and 52 are considered preliminary; retroactive data updates are expected.

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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 December 31, 2022 (surveillance week 2022-52)
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 586 108 493 0 0 85 85 0 493 17 493 0 3 3 1 0 493 8 493 18 493 22 493 30
Prince Edward Island 782 166 184 0 2 11 13 0 184 22 24 0 0 4 0 0 24 2 24 0 24 4 24 4
Nova Scotia 3481 876 1878 0 0 154 154 0 1878 165 23 0 0 3 0 0 23 0 23 0 23 1 23 2
New Brunswick 3609 493 2369 0 7 202 209 0 2114 165 98 0 0 4 0 0 98 3 98 8 98 12 98 10
Atlantic 8458 1643 4924 0 9 452 461 0 4669 369 638 0 3 14 1 0 638 13 638 26 638 39 638 46
Région Nord-Est 3302 414 2204 0 0 491 491 0 948 116 40 1 0 1 0 0 40 6 38 6 N.C. N.C. 40 3
Québec-Chaudière-Appalaches 5157 768 1482 0 0 306 306 0 1387 82 263 0 0 1 0 0 266 14 263 8 N.C. N.C. 263 9
Centre-du-Québec 4578 852 696 0 0 63 63 5 559 38 23 0 0 1 0 0 23 1 23 1 N.C. N.C. 23 2
Montréal-Laval 4414 677 4236 0 0 267 267 8 1782 79 653 3 1 11 0 0 653 39 659 15 N.C. N.C. 653 51
Ouest du Québec 3573 548 1185 0 0 132 132 0 841 54 19 0 0 0 0 0 19 5 19 3 N.C. N.C. 19 2
Montérégie 4007 588 871 0 0 29 29 2 817 36 3 0 0 1 0 0 3 0 3 0 N.C. N.C. 3 0
Province of Québec 25031 3847 10674 0 0 1288 1288 15 6334 405 1001 4 1 15 0 0 1004 65 1005 33 N.C. N.C. 1001 67
P.H.O.L. - Ottawa 743 226 230 1 11 4 16 0 230 30 113 0 0 0 0 1 113 0 113 2 113 2 113 4
EORLA 2109 215 675 0 0 59 59 0 675 100 27 0 0 5 0 0 27 2 27 2 27 3 27 2
P.H.O.L. - Kingston 525 109 102 0 4 8 12 0 102 6 78 0 0 0 0 3 78 0 78 6 78 3 78 2
UHN / Mount Sinai Hospital 2416 241 707 0 3 16 19 1 707 16 92 0 0 0 0 0 92 0 92 0 92 1 92 1
P.H.O.L. - Toronto 1391 393 977 2 51 2 18 1 977 83 790 0 0 0 0 31 790 11 790 17 790 36 790 44
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. N.R. N.R.
Shared Hospital Laboratory 2589 323 N.R. N.R. N.R. N.R. N.R. N.R. 2589 127 2599 0 0 0 0 20 2599 25 2621 25 2621 67 2621 43
P.H.O.L. - Sault Ste. Marie 13 1 8 0 1 0 1 0 8 0 8 0 0 0 0 1 8 0 8 3 8 0 8 0
P.H.O.L. - Timmins 173 19 36 0 4 0 4 0 36 8 36 0 0 0 0 1 36 0 36 1 36 2 36 3
St. Joseph's - London 2883 362 893 0 0 52 52 1 893 65 59 0 0 0 0 4 59 5 59 2 59 4 59 5
P.H.O.L. - London 980 292 504 0 18 2 20 0 504 70 394 0 0 0 0 22 394 3 394 0 394 22 394 15
P.H.O.L. - Orillia 41 22 95 0 4 0 4 0 95 19 80 0 0 0 0 4 80 0 80 4 80 7 80 5
P.H.O.L. - Thunder Bay 135 39 24 0 1 0 1 0 24 9 22 0 0 0 0 5 22 0 22 0 22 1 22 1
P.H.O.L. - Sudbury 57 17 34 0 1 0 1 0 34 3 16 0 0 0 0 0 16 0 16 0 16 0 16 0
P.H.O.L. - Hamilton 731 275 433 0 4 6 10 0 433 26 280 0 0 0 0 18 280 2 280 5 280 15 280 13
P.H.O.L. - Peterborough 101 10 61 0 0 0 0 0 61 21 45 0 0 0 0 1 45 0 45 6 45 3 45 1
St. Joseph's - Hamilton 2772 510 1584 0 0 72 72 0 1584 178 1584 0 0 55 0 0 1584 19 1584 15 1584 82 0 0
Sault Area Hospital 421 45 420 0 10 19 29 0 420 6 86 4 0 9 0 0 86 1 86 7 86 2 86 7
Province of Ontario 18080 3099 6783 3 112 240 318 3 9372 767 6309 4 0 69 0 111 6309 68 6331 95 6331 250 4747 146
Manitoba 2106 219 1360 2 6 73 81 0 1360 148 109 0 0 13 0 0 109 5 123 6 109 7 123 12
Saskatchewan 4010 264 1379 0 0 68 68 1 1206 176 547 3 1 27 0 0 544 9 544 44 544 29 547 32
Alberta 5842 931 2666 64 116 19 199 2 2196 416 1313 8 1 33 1 0 1312 16 1311 61 1302 67 1313 35
Prairies 11958 1414 5405 66 122 160 348 3 4762 740 1969 11 2 73 1 0 1965 30 1978 111 1955 103 1983 79
British Columbia 5877 849 5339 16 115 5 394 2 4981 743 874 7 9 26 1 0 874 18 874 24 841 32 841 99
Yukon 96 3 35 0 0 0 7 0 35 4 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 N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.R. N.R. N.C. N.C.
Nunavut 101 11 45 0 2 0 2 0 45 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 197 14 80 0 2 0 9 0 80 4 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 0 0 N.C. N.C.
CANADA 69601 10866 33205 85 360 2145 2818 23 30198 3028 10791 26 15 197 3 111 10790 194 10826 289 9765 424 9210 437

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 28, 2022 to December 31, 2022 (surveillance weeks 2022-35 to 2022-52)
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 10361 2239 5663 1 233 599 833 0 5663 196 5663 3 25 29 16 0 5663 117 5663 217 5663 513 5663 131
Prince Edward Island 21984 5605 1631 1 116 217 334 0 1631 87 905 15 25 68 5 0 905 52 905 11 905 294 905 19
Nova Scotia 84023 16396 19331 0 4 3451 3455 1 19330 1386 741 4 16 17 2 0 740 33 730 1 740 158 740 13
New Brunswick 71039 10397 23796 1 112 4245 4358 3 17958 974 1795 3 19 100 7 0 1795 122 1795 22 1795 366 1740 108
Atlantic 187407 34637 50421 3 465 8512 8980 4 44582 2643 9104 25 85 214 30 0 9103 324 9093 251 9103 1331 9048 271
Région Nord-Est 52394 7372 24034 0 1 3101 3102 7 8258 814 651 7 3 41 0 0 651 31 644 43 N.C. N.C. 651 31
Québec-Chaudière-Appalaches 116125 11439 12877 0 0 2505 2505 10 12736 1443 3877 20 4 36 0 0 4103 258 3877 188 N.C. N.C. 3877 169
Centre-du-Québec 91883 13291 9377 0 0 1664 1664 12 8289 761 494 12 0 17 0 0 494 35 494 54 N.C. N.C. 494 21
Montréal-Laval 130441 17335 44321 0 8 5552 5560 48 26184 2022 11916 118 13 196 9 0 11925 451 12013 573 N.C. N.C. 11601 299
Ouest du Québec 70581 9869 10545 0 7 2046 2053 5 8192 769 651 20 0 47 1 0 650 120 651 37 N.C. N.C. 651 26
Montérégie 92549 11024 11916 0 0 1535 1535 11 11418 836 72 0 0 2 0 0 72 1 72 4 N.C. N.C. 72 1
Province of Québec 553973 70330 113070 0 16 16403 16419 93 75077 6645 17661 177 20 339 10 0 17895 896 17751 899 N.C. N.C. 17346 547
P.H.O.L. - Ottawa 18986 4765 2209 4 122 55 176 0 2209 154 1743 0 0 0 0 41 1743 5 1743 15 1743 123 1743 35
EORLA 55018 6030 8554 0 0 1302 1302 2 8554 1008 719 7 3 24 16 0 719 34 719 21 719 175 719 50
P.H.O.L. - Kingston 19501 3142 1378 2 85 38 125 1 1377 84 1225 0 0 0 0 59 1226 19 1226 19 1225 155 1226 46
UHN / Mount Sinai Hospital 57886 4615 10900 3 43 307 353 13 10900 160 580 0 0 4 0 0 547 1 580 0 580 18 580 32
P.H.O.L. - Toronto 38070 7867 13253 52 2288 131 1023 1 13226 684 11575 0 0 0 0 503 11578 163 11575 117 11575 883 11575 422
Sick Kids Hospital - Toronto 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Shared Hospital Laboratory 47996 3430 42834 26 1231 671 1928 6 47998 1656 25270 4 0 16 0 290 25283 205 25383 107 25330 628 25224 476
P.H.O.L. - Sault Ste. Marie 1250 240 316 1 45 12 50 0 316 1 268 0 0 0 0 20 268 0 268 16 268 9 268 2
P.H.O.L. - Timmins 6189 698 587 0 158 6 153 0 586 24 568 0 0 0 0 40 568 9 568 9 568 45 568 17
St. Joseph's - London 78838 10321 7838 0 0 838 838 7 7838 674 971 0 0 0 0 39 1005 31 1005 4 1005 162 593 42
P.H.O.L. - London 23209 4998 4941 7 567 55 613 1 4940 472 4364 0 0 0 0 237 4365 58 4365 27 4364 335 4365 164
P.H.O.L. - Orillia 380 208 1458 4 255 22 281 0 1458 177 1407 0 0 0 0 97 1407 27 1407 18 1407 177 1407 75
P.H.O.L. - Thunder Bay 5960 1232 527 0 106 3 109 0 526 37 464 0 0 0 0 14 464 13 464 2 464 41 464 12
P.H.O.L. - Sudbury 1414 217 368 1 54 4 55 0 368 22 318 0 0 0 0 17 318 5 318 4 318 20 318 17
P.H.O.L. - Hamilton 17104 4258 4153 5 285 82 372 3 4150 346 3210 0 0 0 0 140 3210 37 3210 23 3210 249 3210 129
P.H.O.L. - Peterborough 2829 512 660 0 62 8 70 0 660 54 599 0 0 0 0 25 599 7 599 12 599 93 599 21
St. Joseph's - Hamilton 54397 8496 21486 0 0 2572 2572 8 21486 1734 21486 0 0 607 0 0 21486 185 21486 89 21486 1564 0 0
Sault Area Hospital 8587 1489 5300 1 252 236 489 0 5300 44 1662 30 0 32 1 0 1662 35 1662 81 1662 181 1662 25
Province of Ontario 437614 62518 126762 106 5553 6342 10509 42 131892 7331 76429 41 3 683 17 1522 76448 834 76578 564 76523 4858 54521 1565
Manitoba 42355 8265 18345 15 189 1664 1868 0 18345 834 3114 1 4 111 6 0 3104 96 3182 123 3114 531 3182 85
Saskatchewan 107770 9430 22439 0 0 3789 3789 8 16837 785 7351 21 36 339 8 0 7353 164 7355 380 7353 679 7351 282
Alberta 142867 23722 56181 708 6997 1259 8964 18 46403 3182 22717 128 58 455 22 0 22710 266 22683 361 22328 2190 22717 760
Prairies 292992 41417 96965 723 7186 6712 14621 26 81585 4801 33182 150 98 905 36 0 33167 526 33220 864 32795 3400 33250 1127
British Columbia 155891 14866 66694 287 4164 284 8252 35 62476 4005 14392 131 151 484 84 6 14380 301 14380 268 13978 2283 13978 454
Yukon 3525 239 389 0 120 0 129 0 386 10 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 939 126 861 2 114 0 116 0 861 33 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 861 210 N.C. N.C.
Nunavut 2635 241 1374 3 227 3 233 0 1374 32 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 7099 606 2624 5 461 3 478 0 2621 75 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 861 210 N.C. N.C.
CANADA 1634976 224374 456536 1124 17845 38256 59259 200 398233 25500 150768 524 357 2625 177 1528 150993 2881 151022 2846 133260 12082 128143 3964

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 appropriate 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 2022-2023 SARS-CoV-2% 2022-2023 A% 2021-2022 A% 2020-2021 A% Max A% Base Min A% Base Av A% Base 2022-2023 B% 2021-2022 B% 2020-2021 B% Max B% Base Min B% Base Av B% Base 2022-2023 RSV% 2021-2022 RSV% 2020-2021 RSV% Max RSV% Base Min RSV% Base Av RSV% Base
35 2022-09-03 13.40 0.17 0.04 0.00 1.60 0.11 0.68 0.02 0.00 0.02 0.28 0.00 0.13 1.15 4.43 0.02 1.34 0.38 0.60
36 2022-09-10 13.06 0.14 0.01 0.00 2.11 0.23 0.98 0.04 0.00 0.00 0.55 0.00 0.15 1.13 6.61 0.04 1.09 0.22 0.57
37 2022-09-17 12.73 0.24 0.03 0.00 1.59 0.36 0.87 0.01 0.00 0.00 0.19 0.04 0.12 1.05 7.59 0.02 1.37 0.31 0.64
38 2022-09-24 13.59 0.49 0.00 0.02 2.15 0.43 1.16 0.02 0.00 0.00 0.21 0.00 0.14 1.41 7.16 0.10 1.24 0.37 0.64
39 2022-10-01 14.43 0.68 0.01 0.00 2.65 0.57 1.53 0.03 0.00 0.00 0.29 0.09 0.18 2.11 8.48 0.05 1.29 0.41 0.68
40 2022-10-08 15.04 0.99 0.00 0.00 2.17 1.01 1.58 0.03 0.02 0.00 0.20 0.05 0.11 2.45 8.53 0.07 1.39 0.34 0.67
41 2022-10-15 16.56 1.44 0.03 0.01 2.66 1.05 1.57 0.01 0.03 0.00 0.36 0.03 0.16 3.54 9.54 0.10 1.74 0.58 0.98
42 2022-10-22 15.36 2.40 0.03 0.00 2.96 0.77 1.92 0.05 0.02 0.00 0.45 0.05 0.25 4.58 8.18 0.07 2.11 0.63 1.14
43 2022-10-29 15.75 5.57 0.03 0.01 5.23 0.68 2.60 0.03 0.02 0.00 0.55 0.06 0.23 6.63 8.11 0.07 2.16 0.55 1.32
44 2022-11-05 13.88 10.90 0.10 0.04 8.42 1.08 3.39 0.03 0.10 0.03 0.71 0.12 0.31 7.71 7.82 0.05 3.35 0.83 1.92
45 2022-11-12 12.38 15.98 0.07 0.02 9.83 1.18 4.19 0.04 0.06 0.02 0.97 0.22 0.44 7.65 7.03 0.04 4.43 1.29 2.59
46 2022-11-19 11.92 19.81 0.10 0.03 13.95 1.42 5.47 0.05 0.06 0.01 1.49 0.09 0.58 7.61 7.18 0.06 6.33 1.38 3.29
47 2022-11-26 11.74 23.74 0.13 0.03 15.24 1.25 6.91 0.04 0.07 0.04 2.13 0.13 0.80 6.71 8.10 0.03 8.69 1.79 4.46
48 2022-12-03 12.11 23.63 0.19 0.04 18.07 0.76 9.40 0.03 0.15 0.01 3.18 0.08 1.20 6.99 8.92 0.02 9.47 3.11 5.72
49 2022-12-10 12.61 20.80 0.23 0.03 19.52 1.43 11.41 0.06 0.05 0.01 4.21 0.19 1.60 7.37 10.09 0.06 12.26 4.87 7.12
50 2022-12-17 13.10 17.08 0.23 0.01 26.42 1.97 14.27 0.07 0.02 0.01 7.95 0.15 2.55 8.66 10.78 0.07 13.19 5.39 7.93
51 2022-12-24 14.11 13.29 0.18 0.00 28.53 2.27 16.81 0.05 0.02 0.01 10.44 0.19 3.30 8.91 8.97 0.07 15.23 6.52 9.27
52 2022-12-31 15.61 8.49 0.09 0.00 33.97 3.30 20.41 0.07 0.01 0.00 12.73 0.23 4.07 10.03 6.72 0.01 17.80 6.83 10.39
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 2022-2023 EV/RV% 2021-2022 EV/RV% 2020-2021 EV/RV% Max EV/RV% Base Min EV/RV% Base Av EV/RV% Base 2022-2023 HPIV% 2021-2022 HPIV% 2020-2021 HPIV% Max HPIV% Base Min HPIV% Base Av HPIV% Base 2022-2023 ADV% 2021-2022 ADV% 2020-2021 ADV% Max ADV% Base Min ADV% Base Av ADV% Base 2022-2023 HMPV% 2021-2022 HMPV% 2020-2021 HMPV% Max HMPV% Base Min HMPV% Base Av HMPV% Base 2022-2023 HCoV% 2021-2022 HCoV% 2020-2021 HCoV% Max HCoV% Base Min HCoV% Base Av HCoV% Base
35 2022-09-03 15.47 21.96 9.07 27.19 22.44 24.78 2.80 5.99 0.08 3.16 1.15 2.42 2.28 1.18 0.27 1.74 0.99 1.43 1.80 0.23 0.17 2.04 0.10 0.77 0.53 1.05 0.06 0.76 0.18 0.45
36 2022-09-10 16.22 18.59 8.13 30.69 23.30 26.31 3.21 4.93 0.20 3.31 1.35 2.32 2.19 1.15 0.40 2.85 1.42 1.87 1.81 0.24 0.06 0.84 0.10 0.48 0.38 0.62 0.00 0.38 0.12 0.22
37 2022-09-17 21.73 27.46 8.07 33.58 27.74 31.68 3.02 5.97 0.13 3.26 1.65 2.40 2.10 0.81 0.35 2.44 1.38 1.86 1.38 0.17 0.05 1.61 0.00 0.51 0.28 0.44 0.05 0.56 0.00 0.26
38 2022-09-24 23.50 33.19 15.67 39.57 32.80 35.33 2.40 4.73 0.07 2.87 1.92 2.33 1.59 0.82 0.58 2.04 1.11 1.63 1.61 0.37 0.02 1.43 0.06 0.47 0.32 0.67 0.00 1.36 0.06 0.43
39 2022-10-01 22.87 30.01 24.12 40.59 34.87 37.68 3.10 8.12 0.02 3.01 1.70 2.24 2.21 1.14 0.19 2.27 1.04 1.66 1.43 0.17 0.04 0.72 0.05 0.28 0.59 0.62 0.05 0.66 0.07 0.45
40 2022-10-08 19.32 26.26 16.62 41.29 33.00 35.43 3.70 8.19 0.02 3.28 1.90 2.43 1.80 1.31 0.44 2.25 1.39 1.82 1.43 0.16 0.00 0.92 0.05 0.34 0.93 0.57 0.09 1.08 0.22 0.58
41 2022-10-15 16.70 22.91 15.48 33.62 26.94 29.81 3.52 10.46 0.06 3.70 1.94 2.74 2.03 1.37 0.37 1.91 1.28 1.70 1.66 0.20 0.19 0.95 0.04 0.46 1.00 1.69 0.02 0.70 0.00 0.33
42 2022-10-22 12.95 22.16 13.60 32.62 24.54 27.82 4.21 10.01 0.06 3.89 2.64 3.20 1.67 2.54 0.47 2.38 1.47 1.86 1.57 0.15 0.06 0.89 0.15 0.38 1.16 1.07 0.00 1.18 0.20 0.49
43 2022-10-29 11.05 19.64 13.14 28.73 21.67 24.95 4.41 9.38 0.07 3.98 3.18 3.56 1.79 1.15 0.37 2.42 1.63 1.96 1.78 0.36 0.02 1.64 0.12 0.57 1.86 1.05 0.00 2.35 0.27 0.75
44 2022-11-05 10.23 21.45 9.23 23.82 16.75 21.34 4.14 10.28 0.03 4.81 2.94 3.70 2.02 1.42 0.22 2.88 1.18 2.20 1.79 0.77 0.13 1.08 0.23 0.47 2.54 2.21 0.00 2.59 0.21 0.88
45 2022-11-12 7.77 22.39 9.70 23.08 15.17 20.56 3.90 9.97 0.01 5.42 2.53 4.01 1.99 1.63 0.33 2.68 2.02 2.42 2.06 0.64 0.01 1.30 0.04 0.77 3.00 2.57 0.03 2.74 0.52 0.96
46 2022-11-19 6.94 21.37 9.02 22.77 15.28 19.27 3.97 8.29 0.04 5.72 1.62 4.19 1.87 2.51 0.30 2.90 1.99 2.53 1.89 0.99 0.04 1.43 0.18 0.79 3.54 2.99 0.03 3.32 0.46 1.25
47 2022-11-26 4.88 18.54 8.44 20.84 12.15 16.09 3.64 7.04 0.06 7.00 2.36 4.72 1.89 1.94 0.32 2.95 1.83 2.35 1.78 1.01 0.02 2.02 0.09 0.89 3.24 3.90 0.04 3.26 0.37 1.25
48 2022-12-03 4.74 16.64 7.94 16.72 12.69 13.83 3.04 5.78 0.02 6.14 3.03 4.18 1.87 1.89 0.35 3.34 1.66 2.48 1.86 1.48 0.02 1.94 0.31 1.08 3.94 4.94 0.02 4.30 1.00 2.04
49 2022-12-10 4.09 14.57 6.21 16.32 10.72 13.07 3.03 3.97 0.00 5.65 2.94 4.19 1.67 2.48 0.54 3.03 1.84 2.49 1.93 1.22 0.05 2.80 0.49 1.46 4.48 6.58 0.05 5.19 0.84 2.52
50 2022-12-17 4.58 12.40 6.62 13.85 8.43 10.90 2.98 3.23 0.06 5.95 2.54 4.27 2.29 2.72 0.51 3.27 1.49 2.45 1.92 1.08 0.02 3.32 0.46 1.70 5.13 7.26 0.11 6.04 1.54 3.16
51 2022-12-24 4.50 9.95 5.65 14.18 8.81 10.48 3.09 3.01 0.04 6.71 2.94 3.95 1.76 2.54 0.58 3.20 1.36 2.04 2.22 1.20 0.04 4.39 0.37 2.44 5.27 8.11 0.05 6.68 1.87 3.72
52 2022-12-31 4.34 7.71 6.53 14.41 6.24 9.23 3.26 2.13 0.03 5.08 2.87 3.75 1.80 1.92 0.48 2.59 1.20 1.76 2.67 1.00 0.11 3.81 0.41 2.44 4.74 10.33 0.07 6.73 2.78 4.75

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 2022-09-03 95303 13.40 10317 23.39 26519 12.26 28978 12.71 14405 16.06 14523 7.27 561 9.27
36 2022-09-10 87999 13.06 9220 22.81 25637 12.40 25742 12.04 13362 15.37 13642 7.44 396 10.86
37 2022-09-17 94358 12.73 9788 18.93 26091 12.17 28069 12.72 14236 16.17 15727 6.70 447 13.20
38 2022-09-24 96263 13.59 9345 24.14 26931 13.36 28977 12.35 15018 16.73 15532 6.99 460 10.43
39 2022-10-01 92662 14.43 8311 23.17 29662 13.22 27909 13.57 14871 17.48 11511 9.65 398 7.79
40 2022-10-08 95437 15.04 11290 20.91 31745 13.44 30640 14.46 14741 16.41 6525 13.01 496 6.05
41 2022-10-15 93065 16.56 9618 27.02 32473 13.37 28633 17.02 15414 17.56 6458 13.35 469 5.76
42 2022-10-22 95235 15.36 11962 20.72 32792 12.10 26742 17.29 16859 16.63 6521 11.13 359 7.24
43 2022-10-29 94724 15.75 9563 21.97 33446 11.75 25142 19.65 20163 16.20 5991 10.82 419 8.11
44 2022-11-05 89743 13.88 8906 17.97 32692 11.30 23508 16.57 17671 15.09 6497 8.56 469 8.74
45 2022-11-12 89589 12.38 10513 14.36 31704 10.58 22024 13.83 18318 13.66 6651 9.76 379 6.86
46 2022-11-19 90434 11.92 10650 13.65 30751 11.13 21425 12.63 20613 12.23 6640 9.79 355 7.61
47 2022-11-26 93854 11.74 11661 13.65 33538 11.43 20744 11.77 20318 11.63 7236 10.50 357 8.68
48 2022-12-03 94399 12.11 12354 13.22 35547 12.95 20852 11.38 18475 11.54 6818 9.78 353 7.65
49 2022-12-10 93730 12.61 13445 13.82 34889 13.37 21193 12.30 16601 10.76 7198 12.25 404 4.46
50 2022-12-17 89983 13.10 11781 13.87 34271 14.24 20346 13.88 16279 10.13 6965 10.73 341 14.08
51 2022-12-24 78597 14.11 10225 15.87 30254 14.54 18610 15.78 13690 10.27 5579 12.56 239 10.04
52 2022-12-31 69601 15.61 8458 19.43 25031 15.37 18080 17.14 11958 11.82 5877 14.45 197 7.11

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 2022-09-03 12693 0.17 0.02 932 0.11 0.11 2404 0.17 0.04 4663 0.11 0.00 2573 0.31 0.04 2006 0.20 0.00 115 0.00 0.00
36 2022-09-10 12544 0.14 0.04 906 0.00 0.00 2520 0.12 0.00 4411 0.16 0.02 2566 0.16 0.08 2055 0.19 0.10 86 0.00 0.00
37 2022-09-17 13440 0.24 0.01 854 0.12 0.00 2618 0.19 0.04 4801 0.31 0.02 2798 0.18 0.00 2247 0.22 0.00 122 0.82 0.00
38 2022-09-24 14421 0.49 0.02 788 0.13 0.00 2714 0.22 0.04 5515 0.38 0.00 3044 0.43 0.03 2226 1.21 0.04 134 1.49 0.00
39 2022-10-01 14841 0.68 0.03 688 0.29 0.15 2873 0.21 0.10 5624 0.66 0.02 3132 0.64 0.00 2411 1.33 0.00 113 3.54 0.00
40 2022-10-08 14485 0.99 0.03 818 0.24 0.00 2339 0.21 0.00 5676 1.02 0.05 3081 0.88 0.03 2430 1.85 0.00 141 4.26 0.00
41 2022-10-15 16215 1.44 0.01 776 1.68 0.00 3275 0.49 0.00 5761 1.89 0.00 3737 0.96 0.03 2540 1.85 0.00 126 10.32 0.00
42 2022-10-22 17731 2.40 0.05 1001 2.60 0.00 3608 0.86 0.03 6230 3.10 0.08 4006 2.15 0.02 2774 2.45 0.07 112 18.75 0.00
43 2022-10-29 18445 5.57 0.03 969 3.72 0.00 3821 1.41 0.08 6013 8.13 0.02 4456 7.05 0.00 3026 3.34 0.07 160 20.63 0.00
44 2022-11-05 21494 10.90 0.03 1209 8.02 0.00 4458 3.45 0.02 7006 11.28 0.04 5540 17.94 0.02 3111 8.07 0.06 170 33.53 0.00
45 2022-11-12 26572 15.98 0.04 2145 11.38 0.05 5731 7.47 0.07 8254 13.28 0.04 6772 27.82 0.03 3507 16.03 0.03 163 19.63 0.00
46 2022-11-19 32808 19.81 0.05 3433 14.54 0.00 6914 13.65 0.04 8727 14.32 0.07 8818 30.32 0.06 4741 23.52 0.04 175 10.29 0.00
47 2022-11-26 39766 23.74 0.04 5140 24.20 0.00 9252 22.84 0.06 9193 16.41 0.03 9734 29.45 0.01 6279 26.74 0.10 168 17.86 0.00
48 2022-12-03 43407 23.63 0.03 6393 27.94 0.02 12431 26.91 0.06 9930 16.05 0.02 9129 23.93 0.03 5334 24.07 0.00 190 34.21 0.00
49 2022-12-10 44712 20.80 0.06 7404 28.55 0.00 12616 25.12 0.13 10559 12.98 0.06 8069 17.96 0.02 5817 18.76 0.03 247 42.51 0.00
50 2022-12-17 43831 17.08 0.07 6554 23.25 0.00 13081 21.57 0.15 10525 10.46 0.02 7739 13.75 0.01 5731 16.07 0.10 201 27.36 0.00
51 2022-12-24 35751 13.29 0.05 5487 16.93 0.00 11741 17.26 0.09 7091 7.70 0.03 6193 9.80 0.02 5118 12.13 0.10 121 18.18 0.00
52 2022-12-31 33205 8.49 0.07 4924 9.36 0.00 10674 12.07 0.14 6783 4.69 0.04 5405 6.44 0.06 5339 7.38 0.04 80 11.25 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 2022-09-03 11509 1.15 832 1.44 1737 3.51 4663 0.54 2367 0.68 1795 0.50 115 7.83
36 2022-09-10 11349 1.13 785 0.64 1737 2.71 4411 1.00 2415 0.54 1915 0.73 86 5.81
37 2022-09-17 12232 1.05 721 0.97 1851 3.51 4801 0.60 2610 0.61 2127 0.38 122 2.46
38 2022-09-24 13235 1.41 707 1.13 1908 5.56 5515 0.98 2821 0.35 2150 0.33 134 1.49
39 2022-10-01 13527 2.11 556 3.06 2029 7.69 5623 1.35 2894 0.73 2312 0.65 113 0.88
40 2022-10-08 13246 2.45 677 2.95 1727 8.92 5675 1.92 2707 0.63 2319 0.95 141 2.13
41 2022-10-15 14245 3.54 695 3.45 2330 11.12 5761 2.46 3049 1.38 2284 1.53 126 1.59
42 2022-10-22 15688 4.58 799 3.38 2644 13.09 6230 3.60 3352 2.21 2551 1.72 112 3.57
43 2022-10-29 16163 6.63 929 4.20 2751 17.52 6010 6.09 3634 2.67 2680 3.10 159 3.14
44 2022-11-05 18740 7.71 964 6.64 3126 20.15 7006 7.09 4483 3.37 2993 3.31 168 1.79
45 2022-11-12 23114 7.65 1867 9.16 3986 16.88 8242 7.01 5466 3.64 3390 4.25 163 1.84
46 2022-11-19 26999 7.61 2538 6.82 4620 14.11 8721 7.41 6904 4.88 4041 5.99 175 2.86
47 2022-11-26 34079 6.71 4680 6.24 6170 9.98 9192 6.80 7726 5.14 6143 5.73 168 2.98
48 2022-12-03 36854 6.99 6110 5.35 8002 7.91 9926 6.85 7535 6.89 5091 8.15 190 1.58
49 2022-12-10 37525 7.37 6227 5.77 8206 6.37 10558 7.62 6872 8.60 5415 8.90 247 2.83
50 2022-12-17 37220 8.66 5921 6.67 8545 5.36 10522 8.33 6615 13.11 5416 11.48 201 2.49
51 2022-12-24 32159 8.91 4905 6.81 7374 5.14 9664 8.14 5299 13.04 4796 13.95 121 4.96
52 2022-12-31 30198 10.03 4669 7.90 6334 6.39 9372 8.18 4762 15.54 4981 14.92 80 5.00

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 2022-09-03 3433 2.80 294 0.34 619 2.75 1151 3.21 967 2.69 402 3.73
36 2022-09-10 3454 3.21 280 5.36 646 3.87 1081 2.96 1025 2.44 422 3.32
37 2022-09-17 3973 3.02 301 5.65 661 3.33 1368 3.36 1112 2.07 530 2.26
38 2022-09-24 4589 2.40 334 1.80 717 2.65 1717 2.56 1274 1.73 547 3.47
39 2022-10-01 4878 3.10 286 1.75 728 4.81 1999 3.60 1327 1.81 538 2.79
40 2022-10-08 5057 3.70 298 2.35 578 6.40 2228 2.92 1386 3.68 567 4.76
41 2022-10-15 5998 3.52 265 5.28 851 4.70 2960 3.04 1323 3.40 599 3.67
42 2022-10-22 7244 4.21 354 3.39 904 4.09 3859 3.55 1420 4.72 707 7.36
43 2022-10-29 8428 4.41 441 3.40 944 4.45 4632 3.52 1571 4.20 839 10.25
44 2022-11-05 9258 4.14 362 7.73 974 2.98 5243 2.96 1857 4.79 822 9.98
45 2022-11-12 10628 3.90 458 5.02 1103 2.81 5832 3.24 2451 4.28 783 8.43
46 2022-11-19 11672 3.97 575 5.91 1243 3.06 5943 3.30 2973 3.87 937 8.54
47 2022-11-26 12288 3.64 677 5.91 1319 3.64 5937 3.17 2644 2.91 1710 5.50
48 2022-12-03 12364 3.04 808 3.71 1439 1.88 6344 2.70 2817 3.48 956 5.23
49 2022-12-10 12665 3.03 962 3.64 1438 2.09 6470 2.43 2706 3.51 1089 6.15
50 2022-12-17 12356 2.98 988 2.94 1330 1.93 6718 2.44 2231 4.03 1069 5.52
51 2022-12-24 11679 3.09 783 3.19 1146 2.01 6638 2.65 2129 3.95 983 5.39
52 2022-12-31 10791 3.26 638 2.82 1001 2.00 6309 2.92 1969 4.42 874 4.92

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 2022-09-03 3472 2.28 294 6.12 632 2.53 1179 0.76 965 2.69 402 2.49
36 2022-09-10 3478 2.19 280 3.57 659 3.03 1089 1.10 1028 2.43 422 2.13
37 2022-09-17 3991 2.10 301 4.65 679 3.09 1369 1.46 1111 1.35 530 2.64
38 2022-09-24 4604 1.59 334 1.20 731 3.42 1717 1.05 1275 1.41 547 1.46
39 2022-10-01 4894 2.21 286 2.80 742 4.18 2001 1.35 1327 2.11 538 2.60
40 2022-10-08 5068 1.80 298 4.03 583 5.66 2234 1.16 1386 1.23 567 0.53
41 2022-10-15 6013 2.03 265 3.77 864 4.63 2962 0.95 1323 2.12 599 2.67
42 2022-10-22 7255 1.67 354 1.98 915 4.04 3859 0.88 1420 1.69 707 2.69
43 2022-10-29 8440 1.79 441 2.04 955 5.76 4633 1.01 1571 1.97 839 1.07
44 2022-11-05 9271 2.02 362 6.08 987 5.27 5243 1.16 1857 1.99 822 1.82
45 2022-11-12 10610 1.99 458 5.46 1117 6.62 5800 1.03 2451 1.59 783 1.66
46 2022-11-19 11696 1.87 575 4.35 1265 4.66 5946 1.19 2972 1.38 937 2.45
47 2022-11-26 12291 1.89 677 3.99 1333 5.85 5937 0.94 2633 1.52 1710 1.81
48 2022-12-03 12381 1.87 808 4.33 1455 5.09 6344 1.04 2818 1.38 956 1.88
49 2022-12-10 12674 1.67 962 2.81 1450 4.69 6470 1.07 2703 0.96 1089 2.02
50 2022-12-17 12368 2.29 987 4.05 1364 6.16 6718 1.31 2230 1.70 1069 3.09
51 2022-12-24 11696 1.76 783 2.30 1160 5.52 6638 1.11 2132 1.13 983 2.64
52 2022-12-31 10790 1.80 638 2.04 1004 6.47 6309 1.08 1965 1.53 874 2.06

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 2022-09-03 3492 1.80 294 2.38 619 2.91 1179 0.93 998 1.90 402 1.99
36 2022-09-10 3489 1.81 280 1.79 649 3.39 1089 0.92 1049 1.72 422 1.90
37 2022-09-17 3992 1.38 301 2.66 665 3.31 1368 0.51 1127 0.80 530 1.70
38 2022-09-24 4603 1.61 334 0.90 723 4.98 1714 0.53 1285 1.48 547 1.28
39 2022-10-01 4895 1.43 286 1.75 729 4.53 2001 0.45 1341 1.04 538 1.67
40 2022-10-08 5096 1.43 298 1.01 581 5.34 2236 0.45 1414 1.27 567 1.94
41 2022-10-15 6027 1.66 265 1.89 857 6.07 2962 0.41 1344 1.26 599 2.34
42 2022-10-22 7277 1.57 354 0.85 911 6.70 3865 0.52 1440 1.53 707 1.13
43 2022-10-29 8449 1.78 441 1.81 960 6.35 4632 0.97 1576 1.78 839 0.95
44 2022-11-05 9271 1.79 362 2.76 977 7.57 5245 0.57 1865 1.98 822 1.82
45 2022-11-12 10656 2.06 458 3.06 1123 7.84 5838 0.57 2453 2.77 783 2.04
46 2022-11-19 11677 1.89 575 3.65 1247 6.58 5955 0.27 2962 2.87 937 1.81
47 2022-11-26 12282 1.78 677 2.22 1325 6.11 5951 0.55 2618 2.02 1710 2.16
48 2022-12-03 12376 1.86 808 3.22 1440 4.17 6360 0.64 2812 2.88 956 2.30
49 2022-12-10 12525 1.93 962 3.95 1439 3.61 6474 0.85 2561 2.97 1089 1.93
50 2022-12-17 12385 1.92 987 2.84 1350 3.48 6726 0.86 2253 3.86 1069 1.68
51 2022-12-24 11703 2.22 773 3.36 1151 4.00 6652 1.05 2144 4.76 983 1.63
52 2022-12-31 10826 2.67 638 4.08 1005 3.28 6331 1.50 1978 5.61 874 2.75

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 2022-09-03 2845 15.47 294 30.27 - - 1179 10.18 947 16.79 394 15.48
36 2022-09-10 2817 16.22 280 21.79 - - 1089 11.20 1013 18.76 417 17.99
37 2022-09-17 3337 21.73 301 23.59 - - 1368 20.10 1101 20.62 522 24.33
38 2022-09-24 3847 23.50 334 22.16 - - 1689 22.20 1255 21.59 538 31.78
39 2022-10-01 4149 22.87 286 27.62 - - 2001 19.94 1309 22.23 521 31.67
40 2022-10-08 4488 19.32 298 20.47 - - 2235 15.84 1365 19.85 546 29.67
41 2022-10-15 5161 16.70 265 24.91 - - 2963 11.51 1305 20.15 579 28.67
42 2022-10-22 6332 12.95 354 21.47 - - 3863 7.77 1389 18.14 678 26.40
43 2022-10-29 7495 11.05 441 19.05 - - 4632 7.38 1554 13.96 814 20.64
44 2022-11-05 8272 10.23 362 23.20 - - 5245 6.43 1827 12.10 796 24.37
45 2022-11-12 9526 7.77 458 19.87 - - 5837 4.99 2415 7.99 759 19.89
46 2022-11-19 10428 6.94 575 18.43 - - 5952 4.96 2945 6.25 904 14.49
47 2022-11-26 10987 4.88 677 9.75 - - 5927 3.36 2619 4.39 1678 8.70
48 2022-12-03 10959 4.74 808 9.78 - - 6360 3.21 2787 4.81 931 10.20
49 2022-12-10 11304 4.09 962 7.59 - - 6474 2.90 2689 3.64 1063 8.94
50 2022-12-17 11052 4.58 987 8.81 - - 6726 3.20 2213 4.84 1038 8.67
51 2022-12-24 10495 4.50 783 5.75 - - 6652 3.77 2107 4.94 953 7.56
52 2022-12-31 9765 4.34 638 6.11 - - 6331 3.95 1955 5.27 841 3.80

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 2022-09-03 2818 0.53 294 0.68 610 0.66 523 0.57 997 0.20 394 1.02
36 2022-09-10 2877 0.38 280 0.71 639 0.16 495 0.20 1046 0.67 417 0.00
37 2022-09-17 3264 0.28 301 0.00 654 0.31 658 0.46 1128 0.35 522 0.00
38 2022-09-24 3716 0.32 334 0.00 705 0.57 853 0.23 1286 0.47 538 0.00
39 2022-10-01 4034 0.59 286 0.35 716 0.84 1170 0.34 1341 0.75 521 0.58
40 2022-10-08 4079 0.93 298 1.01 568 0.35 1253 0.56 1414 1.27 546 1.47
41 2022-10-15 4922 1.00 265 0.38 842 1.07 1889 0.53 1347 2.00 579 0.35
42 2022-10-22 6026 1.16 354 0.00 884 1.02 2671 0.79 1439 2.50 678 0.59
43 2022-10-29 7154 1.86 386 0.78 922 0.65 3451 1.45 1580 4.49 814 0.37
44 2022-11-05 7767 2.54 362 0.83 943 2.55 3800 1.97 1866 5.04 796 0.13
45 2022-11-12 9087 3.00 458 0.87 1087 2.48 4325 2.80 2457 4.56 759 1.19
46 2022-11-19 10077 3.54 575 2.61 1193 3.52 4433 2.96 2971 5.02 904 2.21
47 2022-11-26 10691 3.24 677 2.66 1290 3.80 4433 3.50 2612 3.83 1678 1.43
48 2022-12-03 10723 3.94 808 2.72 1381 5.29 4788 4.24 2815 3.13 931 3.97
49 2022-12-10 10882 4.48 962 4.89 1415 5.02 4875 4.21 2567 4.25 1063 5.27
50 2022-12-17 10765 5.13 987 5.78 1350 5.63 5133 4.56 2257 4.70 1038 7.61
51 2022-12-24 10050 5.27 783 6.00 1146 6.54 5024 3.86 2144 5.08 953 11.02
52 2022-12-31 9210 4.74 638 7.21 1001 6.69 4747 3.08 1983 3.98 841 11.77

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