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Respiratory Virus Report, Week 20 - ending May 18, 2024

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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 20 (week ending May 18, 2024) in Canada, percent positivity is currently highest for enterovirus/rhinovirus (10.5% positive) among respiratory viruses under surveillance. The following results were reported from RVDSS laboratories:

  • After reaching a low in early-April 2024 (4.7% positive), national SARS-CoV-2 percent positivity continues to increase (2,048 detections; 8.2% positive). Trends currently vary by region.
  • Influenza percent positivity continues to decrease (723 detections; 3.1% positive) and is now below the epidemic threshold. The end of the influenza season at the national level occurred in week 19 (week ending May 11, 2024).
  • RSV percent positivity is stable (212 detections; 1.0% positive).
  • Percent positivity of all other non-SARS-CoV-2 respiratory viruses is near expected levels typical of this time of year.
  • 34/35 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 May 18, 2024 (surveillance week 2024-20)
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 849 94 769 0 0 3 3 9 769 25 769 3 5 78 1 0 769 14 769 37 769 116 769 26
Prince Edward Island 87 4 83 0 0 0 0 1 83 0 14 1 0 1 0 0 14 0 14 2 14 6 14 0
Nova Scotia 1100 112 1026 0 0 15 15 27 891 5 27 0 0 1 0 0 27 1 27 3 27 2 27 2
New Brunswick 792 31 788 1 0 1 2 28 788 5 79 0 0 11 0 0 79 2 79 2 79 17 79 2
Atlantic 2828 241 2666 1 0 19 20 65 2531 35 889 4 5 91 1 0 889 17 889 44 889 141 889 30
Région Nord-Est 1060 52 1048 0 0 1 1 88 552 12 76 0 0 7 0 0 76 2 74 4 N.C. N.C. 76 3
Québec-Chaudière-Appalaches 1437 191 1389 0 0 4 4 43 1342 39 592 0 0 12 1 0 609 13 592 26 N.C. N.C. 484 7
Centre-du-Québec 1423 58 1341 0 0 8 8 39 765 12 34 0 0 6 0 0 34 3 34 0 N.C. N.C. 34 2
Montréal-Laval 1365 62 2083 0 0 8 8 58 1230 16 798 0 2 40 1 0 798 25 799 29 N.C. N.C. 798 22
Ouest du Québec 810 28 544 0 0 0 0 21 541 6 18 0 0 1 0 0 18 1 18 3 N.C. N.C. 18 0
Montérégie 1020 47 1257 0 0 5 5 26 1256 16 4 0 0 0 0 0 4 0 4 0 N.C. N.C. 4 0
Province of Québec 7115 438 7662 0 0 26 26 275 5686 101 1522 0 2 66 2 0 1539 44 1521 62 N.C. N.C. 1414 34
P.H.O.L. - Ottawa 95 28 80 0 0 0 0 0 80 0 79 0 0 0 0 11 79 1 79 7 79 4 79 0
EORLA 521 31 318 0 0 3 3 3 318 3 24 0 0 1 0 0 24 0 24 1 24 4 24 0
P.H.O.L. - Kingston 168 45 104 0 0 0 0 0 104 0 50 0 0 0 0 2 50 0 50 8 50 9 50 1
UHN / Mount Sinai Hospital 914 62 639 0 0 2 2 1 639 1 37 0 0 3 0 0 37 0 37 1 37 5 37 0
P.H.O.L. - Toronto 278 85 809 1 3 0 3 1 809 0 744 0 0 0 0 85 745 9 744 44 744 85 744 41
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 1270 83 965 1 1 0 2 5 965 1 958 0 0 0 0 15 958 8 959 13 959 29 959 6
P.H.O.L. - Sault Ste. Marie 15 7 16 0 0 0 0 0 16 0 9 0 0 0 0 0 9 0 9 1 9 0 9 0
P.H.O.L. - Timmins 19 0 35 0 0 0 0 3 35 1 32 0 0 0 0 5 32 0 32 1 32 2 32 1
St. Joseph's - London 472 30 308 0 0 0 0 3 308 1 54 0 0 0 0 5 54 2 54 1 54 10 54 0
P.H.O.L. - London 266 47 243 1 0 0 1 0 243 1 221 0 0 0 0 30 221 2 221 25 221 15 221 5
P.H.O.L. - Orillia 20 11 19 0 0 0 0 0 19 0 15 0 0 0 0 0 15 0 15 0 15 0 15 0
P.H.O.L. - Thunder Bay 26 5 24 0 0 1 1 3 24 1 16 0 0 0 0 0 16 0 16 0 16 0 16 0
P.H.O.L. - Sudbury 11 0 15 0 0 0 0 0 15 0 13 0 0 0 0 6 13 0 13 1 13 0 13 2
P.H.O.L. - Hamilton 12 0 18 0 3 0 0 0 18 0 18 0 0 0 0 2 18 2 18 1 18 1 18 1
P.H.O.L. - Peterborough 64 4 90 0 0 0 0 0 90 0 63 0 0 0 0 5 63 1 63 0 63 8 63 3
St. Joseph's - Hamilton 1434 52 1382 0 0 8 8 19 1382 5 1382 0 0 52 0 0 1382 6 1382 36 1382 95 0 0
Sault Area Hospital 116 18 105 0 1 0 1 0 105 0 86 0 0 3 0 0 86 0 86 7 86 7 86 0
Province of Ontario 5701 508 5170 3 8 14 21 38 5170 14 3801 0 0 59 0 166 3802 31 3802 147 3802 274 2420 60
Manitoba 1138 105 856 0 0 0 0 23 856 4 83 0 0 7 0 0 83 3 92 2 83 13 92 0
Saskatchewan 1158 75 879 0 0 5 5 31 774 11 351 1 0 34 0 0 351 8 351 4 351 65 351 6
Alberta 3964 312 3122 18 6 0 27 80 2930 15 754 2 2 51 1 0 754 7 705 2 744 75 754 22
Prairies 6260 492 4857 18 6 5 32 134 4560 30 1188 3 2 92 1 0 1188 18 1148 8 1178 153 1197 28
British Columbia 2978 357 3089 18 4 3 55 42 3083 16 699 1 2 64 2 0 699 18 699 29 672 116 672 18
Yukon 44 3 32 0 0 0 0 4 32 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.
Northwest Territories 22 0 22 0 0 0 0 4 22 1 N.C. N.C. N.C. N.C. N.C. N.C. 22 0 22 0 22 5 N.C. N.C.
Nunavut 166 9 140 0 0 1 1 6 140 14 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 232 12 194 0 0 1 1 14 194 16 N.C. N.C. N.C. N.C. N.C. N.C. 22 0 22 0 22 5 N.C. N.C.
CANADA 25114 2048 23638 40 18 68 155 568 21224 212 8099 8 11 372 6 166 8139 128 8081 290 6563 689 6592 170

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 May 18, 2024 (surveillance weeks 2023-35 to 2024-20)
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 23744 3333 17754 0 0 1355 1355 176 17754 1033 17754 27 85 299 112 0 17754 303 17754 480 17754 1544 17754 541
Prince Edward Island 8190 812 5531 0 0 542 542 239 5531 376 641 4 0 38 9 0 640 42 630 29 641 173 625 35
Nova Scotia 53333 8968 39519 0 0 2913 2913 662 32490 1485 1293 16 3 11 10 0 1293 46 1286 20 1293 247 1292 32
New Brunswick 40171 4085 38144 923 27 1907 2857 1028 37740 1925 3526 10 4 100 34 0 3526 123 3526 114 3526 691 3526 147
Atlantic 125438 17198 100948 923 27 6717 7667 2105 93515 4819 23214 57 92 448 165 0 23213 514 23196 643 23214 2655 23197 755
Région Nord-Est 61308 7337 56837 5 0 4737 4742 1645 23541 1551 3054 17 12 68 19 0 3054 126 2971 139 N.C. N.C. 3054 149
Québec-Chaudière-Appalaches 70631 9821 52353 0 0 5618 5618 2077 50173 2941 20394 22 9 99 15 0 21003 607 20393 761 N.C. N.C. 16694 629
Centre-du-Québec 87994 12743 48898 0 0 4638 4638 1411 27478 1725 1330 15 8 36 7 0 1330 65 1330 60 N.C. N.C. 1363 53
Montréal-Laval 103615 14203 93341 5 2 6791 6798 1352 58863 3084 31717 98 46 573 26 0 31717 644 31801 913 N.C. N.C. 31717 1103
Ouest du Québec 57193 10199 26017 4 0 2146 2150 510 25766 1148 724 11 3 34 7 0 724 59 724 34 N.C. N.C. 724 29
Montérégie 56543 8269 48951 0 0 3290 3290 574 47861 1973 256 1 0 1 2 0 256 8 256 5 N.C. N.C. 256 3
Province of Québec 437284 62572 326397 14 2 27220 27236 7569 233682 12422 57475 164 78 811 76 0 58084 1509 57475 1912 N.C. N.C. 53808 1966
P.H.O.L. - Ottawa 12019 3981 8601 301 56 199 430 49 8595 158 5202 0 0 0 0 178 5202 14 5200 173 5202 466 5200 328
EORLA 44471 4692 21658 0 0 1638 1638 493 21658 1156 1486 3 5 40 5 0 1461 16 1486 41 1486 267 1486 48
P.H.O.L. - Kingston 8382 2292 4869 151 20 97 229 8 4868 168 3319 0 0 0 0 104 3319 12 3319 54 3319 364 3319 175
UHN / Mount Sinai Hospital 39855 3262 25578 41 10 581 632 94 25578 240 1895 0 0 34 2 0 1895 3 1895 25 1895 90 1895 57
P.H.O.L. - Toronto 20731 5776 39735 1223 933 366 1856 278 39725 1059 36596 0 0 0 0 1639 36605 434 36579 1079 36596 3451 36579 1998
Sick Kids Hospital - Toronto 4532 321 4141 106 102 20 228 84 4141 314 4141 15 12 113 21 0 4141 109 4141 136 4141 823 4141 133
Shared Hospital Laboratory 63419 4877 52612 882 543 296 1721 491 52619 1351 52359 0 0 0 0 404 46705 377 52452 376 52470 1732 52474 572
P.H.O.L. - Sault Ste. Marie 621 281 760 55 3 17 69 3 760 46 499 0 0 0 0 18 499 1 499 1 499 31 499 48
P.H.O.L. - Timmins 1267 333 1344 67 11 38 104 16 1344 68 1081 0 0 0 0 43 1081 8 1081 25 1081 68 1081 58
St. Joseph's - London 31402 3618 18004 0 0 1003 1003 278 17990 741 2504 0 0 0 0 51 2523 47 2523 66 2525 287 2523 81
P.H.O.L. - London 16173 4361 12420 504 148 171 629 123 12417 481 10080 0 0 0 0 402 10080 48 10075 257 10080 856 10075 450
P.H.O.L. - Orillia 657 165 1311 73 17 11 101 1 1308 74 1236 0 0 0 0 34 1236 16 1236 24 1236 147 1236 27
P.H.O.L. - Thunder Bay 2114 577 1391 64 3 9 46 15 1388 35 1153 0 0 0 0 32 1153 7 1153 37 1153 71 1153 36
P.H.O.L. - Sudbury 833 243 1011 45 1 23 69 2 1009 26 730 0 0 0 0 34 731 2 730 17 730 65 730 69
P.H.O.L. - Hamilton 7279 2126 6164 162 72 99 260 43 6159 172 4686 0 0 0 0 158 4686 94 4685 137 4686 612 4685 223
P.H.O.L. - Peterborough 2725 740 2875 214 206 75 161 38 2865 225 2171 0 0 0 0 102 2171 42 2171 67 2171 335 2171 76
St. Joseph's - Hamilton 69590 6139 62622 0 0 3300 3300 982 62622 1811 62622 0 0 920 0 0 62622 397 62622 1011 62622 3689 0 0
Sault Area Hospital 6659 920 4658 183 26 56 265 25 4651 205 3706 28 1 51 17 0 3657 42 3657 88 3657 324 3667 77
Province of Ontario 332729 44704 269754 4071 2151 7999 12741 3023 269697 8330 195466 46 18 1158 45 3199 189767 1669 195504 3614 195549 13678 132914 4456
Manitoba 58860 7888 44384 146 16 1918 2080 744 44384 1420 3543 5 11 61 44 0 3543 135 4345 173 3543 615 4345 153
Saskatchewan 74156 7768 52069 150 29 5434 5613 2226 46208 1750 17151 38 9 322 29 0 17151 312 17151 836 17151 1685 17151 532
Alberta 197134 21374 176807 11867 885 593 13416 4792 165516 6399 48837 164 97 1045 4 0 48825 538 46799 46 48071 4477 48836 1421
Prairies 330150 37030 273260 12163 930 7945 21109 7762 256108 9569 69531 207 117 1428 77 0 69519 985 68295 1055 68765 6777 70332 2106
British Columbia 140324 18174 143203 4226 919 279 9128 1569 139772 6077 34023 129 200 701 202 0 34025 1025 33910 1378 32744 4951 32721 1037
Yukon 1947 191 1288 36 15 0 64 28 1279 48 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 1340 79 1277 167 7 1 175 67 1277 175 N.C. N.C. N.C. N.C. N.C. N.C. 1078 46 1078 11 1277 161 N.C. N.C.
Nunavut 5485 477 4082 433 34 53 520 252 4082 556 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 8772 747 6647 636 56 54 759 347 6638 779 N.C. N.C. N.C. N.C. N.C. N.C. 1078 46 1078 11 1277 161 N.C. N.C.
CANADA 1374697 180425 1120209 22033 4085 50214 78640 22375 999412 41996 379709 603 505 4546 565 3199 375686 5748 379458 8613 321549 28222 312972 10320

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 14.40 13.40 0.69 0.18 0.04 1.60 0.11 0.67 0.06 0.02 0.00 0.28 0.00 0.14 0.58 1.12 4.43 1.34 0.38 0.61
36 2023-09-09 15.92 13.07 0.43 0.14 0.01 2.11 0.23 0.99 0.06 0.04 0.00 0.55 0.00 0.15 0.71 1.12 6.61 1.09 0.22 0.62
37 2023-09-16 16.49 12.74 0.48 0.23 0.03 1.59 0.35 0.87 0.03 0.01 0.00 0.19 0.04 0.12 0.82 1.06 7.59 1.37 0.38 0.65
38 2023-09-23 18.60 13.62 0.51 0.48 0.00 2.15 0.43 1.17 0.02 0.02 0.00 0.21 0.00 0.14 1.15 1.47 7.16 1.24 0.37 0.67
39 2023-09-30 19.59 14.44 0.51 0.67 0.01 2.65 0.50 1.52 0.09 0.03 0.00 0.29 0.09 0.18 1.14 2.14 8.48 1.29 0.51 0.72
40 2023-10-07 19.81 15.06 0.64 0.96 0.00 2.17 1.01 1.58 0.05 0.03 0.02 0.20 0.05 0.11 1.35 2.54 8.53 1.39 0.34 0.71
41 2023-10-14 17.55 16.59 0.49 1.42 0.03 2.66 1.05 1.56 0.03 0.01 0.03 0.36 0.03 0.16 1.80 3.65 9.54 1.74 0.58 1.03
42 2023-10-21 17.78 15.39 0.73 2.36 0.03 2.96 0.77 1.92 0.08 0.05 0.02 0.45 0.05 0.25 2.38 4.63 8.18 2.11 0.63 1.25
43 2023-10-28 17.89 15.78 1.16 5.47 0.03 5.19 0.68 2.59 0.10 0.03 0.02 0.55 0.06 0.23 3.25 6.76 8.11 2.16 0.55 1.41
44 2023-11-04 17.74 13.91 2.63 10.75 0.10 8.32 1.08 3.35 0.10 0.03 0.10 0.71 0.12 0.31 4.07 7.77 7.82 3.35 0.83 2.07
45 2023-11-11 18.17 12.43 4.93 16.19 0.07 9.83 1.18 4.19 0.14 0.04 0.06 0.97 0.22 0.44 5.12 7.68 7.03 4.43 1.29 2.71
46 2023-11-18 18.80 11.96 7.24 20.23 0.10 13.89 1.42 5.43 0.16 0.05 0.06 1.49 0.09 0.57 5.85 7.54 7.18 6.33 1.38 3.60
47 2023-11-25 19.31 11.76 8.81 24.27 0.13 15.25 1.25 6.91 0.12 0.04 0.07 2.13 0.13 0.80 6.81 6.66 8.10 8.69 1.79 4.79
48 2023-12-02 18.03 12.12 11.62 24.04 0.19 18.07 0.76 9.40 0.26 0.03 0.15 3.18 0.08 1.20 6.99 6.87 8.92 9.47 3.11 6.08
49 2023-12-09 17.53 12.61 14.74 21.12 0.23 19.13 1.43 11.34 0.29 0.06 0.05 4.21 0.19 1.60 7.38 7.29 10.09 12.26 5.40 7.54
50 2023-12-16 17.78 13.10 15.32 17.31 0.23 26.42 1.97 13.93 0.36 0.06 0.02 7.50 0.15 2.48 7.26 8.61 10.78 13.19 6.42 8.55
51 2023-12-23 16.81 14.09 16.78 12.50 0.18 28.53 2.27 16.69 0.45 0.05 0.02 10.44 0.19 3.30 7.29 9.16 8.97 15.23 7.40 9.92
52 2023-12-30 15.35 15.53 18.18 7.93 0.09 33.97 3.30 20.32 0.52 0.07 0.01 12.58 0.23 4.04 7.41 10.59 6.72 17.80 7.89 10.97
1 2024-01-06 14.51 15.03 14.49 4.54 0.08 30.93 4.58 19.59 0.60 0.07 0.00 10.34 0.22 3.87 7.10 10.34 5.26 15.62 8.37 10.84
2 2024-01-13 13.03 13.38 11.16 2.21 0.11 26.80 5.46 19.11 0.56 0.05 0.01 11.01 0.29 3.91 6.26 9.07 4.32 14.05 7.45 10.24
3 2024-01-20 11.35 12.21 10.27 1.40 0.04 28.20 9.13 18.95 0.79 0.14 0.01 12.75 0.35 4.70 6.13 8.43 3.42 15.56 7.90 10.95
4 2024-01-27 10.19 11.30 11.10 0.91 0.05 27.01 12.34 18.82 1.08 0.14 0.00 12.74 0.41 5.17 5.85 7.96 2.33 15.88 8.38 11.89
5 2024-02-03 9.34 11.51 11.28 0.76 0.03 23.66 15.78 19.15 1.48 0.28 0.01 14.84 0.41 5.77 5.91 7.15 2.19 16.33 8.77 12.14
6 2024-02-10 8.79 11.88 10.37 0.67 0.04 23.36 15.68 18.80 1.74 0.34 0.01 16.23 0.44 6.22 5.21 5.78 2.10 15.79 7.98 12.32
7 2024-02-17 8.12 11.79 9.43 0.57 0.02 24.22 15.48 18.53 2.18 0.29 0.00 17.02 0.35 6.56 4.49 5.13 2.16 15.53 8.42 11.89
8 2024-02-24 7.49 11.73 8.01 0.57 0.06 28.62 12.42 18.57 3.17 0.49 0.02 16.79 0.45 6.61 4.78 4.53 2.12 15.47 8.04 11.28
9 2024-03-02 7.03 11.18 6.72 0.63 0.12 29.30 11.04 18.13 4.03 0.70 0.00 15.45 0.74 6.25 3.79 3.70 2.50 15.62 7.59 10.52
10 2024-03-09 6.24 11.41 5.55 0.63 0.16 29.65 8.51 16.84 5.12 0.77 0.00 14.86 0.81 6.42 3.64 2.80 3.10 14.97 6.92 9.92
11 2024-03-16 6.13 11.58 4.36 0.52 0.26 24.27 6.74 14.55 5.42 1.15 0.01 13.11 1.05 6.86 3.18 2.18 3.71 12.11 6.29 9.33
12 2024-03-23 5.17 11.28 3.30 0.59 0.86 20.91 5.51 12.68 5.82 1.29 0.00 11.53 1.51 7.43 2.49 1.98 3.79 10.70 6.46 8.59
13 2024-03-30 4.85 10.85 2.71 0.64 1.52 18.09 4.67 11.66 6.60 1.72 0.00 12.55 1.98 7.90 2.32 1.63 4.00 9.32 6.45 8.11
14 2024-04-06 4.72 10.91 2.28 0.38 2.48 24.10 3.21 11.23 6.76 1.84 0.01 13.12 2.14 7.89 2.08 1.33 4.05 8.09 6.06 6.91
15 2024-04-13 4.91 11.37 1.80 0.59 3.84 17.75 2.18 8.72 6.02 1.92 0.02 12.22 2.00 7.55 1.79 1.40 3.46 7.73 5.34 6.34
16 2024-04-20 4.81 10.93 1.35 0.52 6.98 13.67 2.13 6.80 4.97 1.86 0.01 11.94 2.56 7.68 1.68 1.31 2.97 6.64 4.40 5.65
17 2024-04-27 5.53 10.09 1.15 0.48 9.67 11.31 1.28 5.34 4.71 1.90 0.01 12.18 2.94 7.49 1.47 1.14 2.84 5.79 3.89 4.80
18 2024-05-04 6.48 9.85 1.14 0.50 11.28 8.04 0.89 3.95 4.18 1.82 0.01 10.20 2.65 6.31 1.27 0.87 2.34 4.86 2.84 3.85
19 2024-05-11 7.43 9.60 0.92 0.67 12.58 8.22 0.90 3.25 3.27 1.47 0.05 9.33 2.12 5.71 1.07 0.74 2.40 4.61 2.44 3.31
20 2024-05-18 8.15 9.32 0.66 0.78 10.28 6.42 0.56 2.33 2.40 1.29 0.07 7.59 1.12 4.89 1.00 0.65 2.52 4.46 1.88 2.84
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 12.50 15.47 21.96 27.19 22.44 24.71 1.99 2.80 5.99 3.16 1.15 2.44 1.62 2.28 1.18 1.74 0.99 1.43 0.34 1.80 0.23 2.04 0.10 0.78 0.28 0.53 1.05 0.76 0.18 0.45
36 2023-09-09 14.85 16.22 18.59 30.69 23.30 26.31 1.49 3.21 4.93 3.31 1.35 2.32 1.52 2.18 1.15 2.85 1.42 1.87 0.39 1.81 0.24 0.84 0.10 0.48 0.42 0.38 0.62 0.38 0.12 0.22
37 2023-09-16 18.29 21.73 27.46 33.58 27.74 31.69 1.60 3.02 5.97 3.26 1.65 2.40 1.47 2.10 0.81 2.44 1.38 1.86 0.39 1.38 0.17 1.61 0.00 0.51 0.23 0.28 0.44 0.56 0.00 0.26
38 2023-09-23 20.25 23.50 33.19 39.57 32.80 35.83 1.77 2.42 4.73 2.87 1.92 2.33 0.93 1.58 0.82 2.04 1.11 1.63 0.38 1.61 0.37 1.43 0.06 0.48 0.46 0.32 0.67 1.36 0.06 0.43
39 2023-09-30 18.52 22.89 30.01 40.59 34.87 37.68 1.32 3.09 8.12 3.01 1.70 2.24 1.15 2.21 1.14 2.27 1.04 1.66 0.51 1.43 0.17 0.72 0.05 0.29 0.28 0.59 0.62 0.66 0.07 0.45
40 2023-10-07 17.45 19.32 26.26 41.29 33.00 35.43 1.34 3.69 8.19 3.28 1.90 2.43 1.41 1.79 1.31 2.25 1.39 1.82 0.32 1.49 0.16 0.92 0.05 0.34 0.26 0.93 0.57 1.08 0.22 0.59
41 2023-10-14 15.74 16.70 22.91 33.62 26.94 29.93 1.28 3.52 10.46 3.70 1.96 2.75 1.38 2.03 1.37 1.91 1.28 1.70 0.37 1.66 0.20 0.95 0.04 0.46 0.32 0.99 1.69 0.70 0.00 0.34
42 2023-10-21 13.12 12.95 22.16 32.62 24.54 27.86 1.59 4.22 10.01 3.89 2.64 3.21 1.43 1.65 2.54 2.39 1.47 1.86 0.46 1.58 0.15 0.89 0.15 0.40 0.17 1.16 1.07 1.18 0.20 0.49
43 2023-10-28 12.52 11.05 19.64 28.73 21.67 24.95 1.21 4.41 9.38 3.98 3.18 3.54 1.48 1.79 1.15 2.42 1.63 1.96 0.46 1.79 0.36 1.64 0.12 0.58 0.38 1.86 1.05 2.35 0.27 0.75
44 2023-11-04 10.83 10.23 21.45 23.82 16.75 21.38 1.44 4.14 10.28 4.81 2.94 3.72 1.76 2.02 1.42 2.88 1.18 2.21 0.55 1.79 0.77 1.08 0.23 0.48 0.37 2.54 2.21 2.59 0.21 0.88
45 2023-11-11 10.70 7.77 22.39 23.08 15.17 20.56 1.65 3.90 9.97 5.42 2.53 4.01 1.45 1.99 1.63 2.68 2.02 2.42 0.60 2.06 0.64 1.30 0.04 0.77 0.42 3.00 2.57 2.74 0.52 0.96
46 2023-11-18 8.64 6.93 21.37 22.77 15.28 19.24 1.39 3.97 8.29 5.72 1.62 4.14 2.03 1.87 2.51 2.90 1.99 2.52 0.79 1.89 0.99 1.43 0.18 0.81 0.65 3.54 2.99 3.32 0.46 1.25
47 2023-11-25 7.62 4.88 18.54 20.84 12.15 16.09 1.55 3.63 7.04 7.00 2.36 4.72 1.90 1.89 1.94 2.95 1.83 2.35 1.00 1.78 1.01 2.02 0.09 0.90 0.65 3.24 3.90 3.26 0.37 1.25
48 2023-12-02 6.79 4.74 16.64 16.72 12.69 13.84 1.51 3.04 5.78 6.14 3.03 4.18 2.15 1.87 1.89 3.34 1.66 2.49 0.91 1.86 1.48 1.94 0.31 1.09 0.76 3.94 4.94 4.30 1.00 2.04
49 2023-12-09 6.00 4.09 14.57 16.32 10.72 13.07 1.39 3.03 3.97 5.65 2.94 4.19 1.83 1.68 2.48 3.03 1.84 2.50 1.20 1.93 1.22 2.80 0.49 1.48 1.12 4.48 6.58 5.19 0.84 2.53
50 2023-12-16 5.90 4.58 12.40 13.85 8.43 10.91 1.46 2.98 3.23 5.95 2.54 4.22 2.00 2.29 2.72 3.13 1.49 2.42 1.31 1.92 1.08 3.32 0.46 1.68 1.47 5.13 7.26 6.04 1.54 3.16
51 2023-12-23 5.56 4.49 9.95 14.18 8.81 10.48 1.35 3.09 3.01 6.71 2.94 3.95 1.55 1.76 2.54 3.20 1.36 2.04 1.59 2.23 1.20 4.39 0.37 2.47 1.77 5.28 8.11 6.68 1.87 3.72
52 2023-12-30 4.71 4.50 7.71 14.41 6.24 9.26 1.35 3.32 2.13 5.08 2.87 3.75 1.76 1.80 1.92 2.59 1.20 1.76 1.76 2.75 1.00 3.81 0.41 2.49 2.48 4.73 10.33 6.73 2.78 4.73
1 2024-01-06 4.80 4.19 5.71 11.09 4.36 7.42 1.48 3.63 1.84 5.08 2.68 3.34 1.48 1.88 1.84 2.67 0.85 1.54 2.20 2.94 0.72 4.45 0.28 2.74 3.06 4.40 9.27 7.77 3.07 5.16
2 2024-01-13 4.43 4.71 3.98 9.55 4.31 6.79 1.17 3.24 1.19 4.12 2.46 3.05 1.25 1.87 1.13 2.15 0.87 1.37 1.64 2.61 0.38 4.76 0.42 2.69 3.19 4.01 7.46 7.89 2.84 5.45
3 2024-01-20 4.59 6.68 3.12 8.42 4.44 6.01 1.08 2.92 0.76 3.25 2.59 2.82 1.11 1.97 1.34 2.10 1.15 1.45 2.20 2.56 0.24 5.56 0.47 3.18 3.89 3.46 4.97 7.90 4.17 6.11
4 2024-01-27 4.37 8.22 2.60 9.04 4.89 6.41 1.16 2.78 0.64 3.12 1.77 2.55 1.56 2.35 1.18 1.83 1.11 1.49 2.11 2.71 0.23 5.19 0.55 3.05 5.19 2.63 3.92 7.86 3.79 6.09
5 2024-02-03 5.02 8.94 3.02 9.79 6.06 6.94 1.45 2.70 0.48 3.48 1.70 2.39 1.62 2.44 1.57 1.93 1.36 1.62 2.27 2.96 0.25 5.70 0.58 3.34 5.10 3.20 2.83 8.49 4.55 6.84
6 2024-02-10 6.26 9.97 3.86 9.89 6.16 6.98 1.56 2.68 0.51 2.89 1.57 2.19 1.84 2.14 1.44 1.74 1.25 1.51 2.54 3.73 0.42 5.57 0.65 3.48 6.80 2.64 3.01 8.57 3.48 6.75
7 2024-02-17 6.18 9.87 4.46 8.95 6.00 7.04 1.54 2.63 0.44 3.20 1.42 2.11 1.22 2.31 1.52 1.61 1.30 1.51 2.82 4.41 0.44 6.05 1.45 3.96 7.73 3.14 3.24 8.02 4.35 6.52
8 2024-02-24 6.21 9.55 6.31 8.35 5.20 6.94 1.84 2.55 0.73 3.21 1.31 2.25 1.30 2.86 1.85 2.00 1.38 1.66 3.15 4.29 0.53 5.74 1.19 4.19 8.28 3.07 3.67 8.29 4.21 6.61
9 2024-03-02 6.48 9.77 7.80 9.03 5.73 7.75 2.40 3.07 0.60 3.35 1.41 2.44 1.65 2.75 1.90 1.92 1.09 1.40 3.92 4.72 0.40 6.42 1.87 4.46 7.09 3.41 3.32 8.01 5.09 6.87
10 2024-03-09 6.52 9.42 8.24 10.16 5.53 8.08 2.74 2.77 0.68 4.18 1.19 2.69 1.31 2.79 1.98 2.23 1.50 1.78 4.57 5.05 0.51 6.74 2.26 4.94 6.84 3.71 3.86 8.34 4.28 6.99
11 2024-03-16 6.67 8.77 8.97 9.45 7.15 8.22 3.43 3.48 0.66 4.58 1.35 3.00 1.29 2.39 1.88 2.32 1.23 1.69 4.88 5.07 0.59 7.94 2.52 4.87 7.18 3.70 3.25 8.02 4.35 6.23
12 2024-03-23 6.63 9.31 9.52 10.26 8.58 9.63 4.10 2.98 1.05 4.95 1.26 3.33 1.42 2.60 1.71 2.13 1.82 1.96 4.63 5.40 0.77 6.69 3.65 5.35 6.79 4.50 4.38 6.99 3.95 5.67
13 2024-03-30 7.36 8.35 8.49 12.58 7.69 10.26 4.52 3.17 1.39 5.21 1.48 3.68 1.63 2.51 2.30 2.12 1.37 1.70 5.02 4.79 1.28 6.90 3.95 5.27 6.02 4.04 4.45 8.16 3.65 5.46
14 2024-04-06 7.54 8.95 9.25 13.59 8.46 12.00 4.52 3.45 1.18 6.26 1.67 4.30 1.58 2.56 1.74 2.31 1.50 1.86 5.14 4.61 1.45 7.70 4.14 5.99 6.77 4.51 4.24 7.79 3.84 4.86
15 2024-04-13 8.51 9.16 9.14 14.59 9.49 13.17 5.96 3.83 1.35 6.94 1.97 4.61 1.39 3.04 1.71 2.62 1.64 2.12 4.64 4.09 1.52 7.47 3.81 6.11 5.46 3.56 4.97 5.52 3.23 4.24
16 2024-04-20 9.50 8.67 8.20 16.10 10.84 13.77 5.48 3.89 2.19 7.88 1.97 5.20 1.53 2.79 1.84 3.21 1.85 2.32 5.17 3.93 2.18 7.16 3.71 6.04 4.92 3.64 4.91 4.99 3.51 4.32
17 2024-04-27 11.52 9.88 7.74 18.29 13.64 16.16 6.63 4.07 1.78 8.67 2.07 6.01 1.35 2.63 1.37 2.54 1.70 2.10 4.22 3.53 2.40 6.58 4.68 5.77 4.78 4.36 4.91 4.11 2.54 3.37
18 2024-05-04 10.39 10.97 7.41 20.03 12.54 16.39 6.55 4.84 2.07 8.21 3.19 5.80 1.46 3.57 1.32 2.89 1.43 2.24 3.94 3.15 2.55 6.37 3.14 5.22 4.43 3.42 4.80 4.00 2.36 3.10
19 2024-05-11 10.29 11.03 8.36 21.71 15.33 19.23 6.99 4.11 2.71 9.24 3.67 5.98 1.28 2.96 1.52 2.63 1.61 2.06 3.91 2.51 3.63 7.46 3.23 4.86 3.39 3.46 4.37 3.71 1.58 2.41
20 2024-05-18 10.50 10.82 9.06 24.52 16.73 19.77 6.95 4.14 3.29 8.60 3.90 6.75 1.57 3.18 1.68 3.35 1.79 2.44 3.59 1.79 4.79 6.85 2.55 5.12 2.58 2.71 4.53 3.31 1.87 2.49

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 25656 14.40 2110 16.92 9351 16.30 6230 12.39 5192 10.59 2651 18.03 122 11.48
36 2023-09-09 28237 15.92 2346 20.20 10215 17.37 6939 15.46 5968 11.90 2640 16.70 129 17.05
37 2023-09-16 31790 16.49 2567 18.62 11678 18.11 7337 15.66 6948 12.12 3111 20.64 149 10.07
38 2023-09-23 36264 18.60 2775 18.38 13455 20.48 8514 18.38 7969 14.23 3377 22.59 174 10.34
39 2023-09-30 40587 19.59 3126 22.65 15431 21.30 9291 17.86 8658 15.65 3895 23.59 186 12.90
40 2023-10-07 42173 19.81 3544 24.41 15684 22.19 9349 17.61 9198 15.96 4202 20.75 196 12.24
41 2023-10-14 38462 17.55 3583 20.74 12605 18.30 8426 15.27 9624 16.76 4047 19.13 177 14.69
42 2023-10-21 39350 17.78 3493 19.70 12590 18.63 9300 16.86 10040 17.16 3737 17.13 190 17.37
43 2023-10-28 37286 17.89 3095 17.74 12003 18.29 9276 19.35 9450 17.05 3262 14.87 200 17.50
44 2023-11-04 38183 17.74 2965 17.91 11975 18.42 9060 17.09 10341 18.12 3648 15.98 194 15.98
45 2023-11-11 38722 18.17 3122 20.12 11815 19.90 9607 18.24 10448 16.98 3545 14.41 185 10.81
46 2023-11-18 41432 18.80 3186 22.47 13182 20.21 10470 20.36 11134 16.80 3245 12.14 215 5.12
47 2023-11-25 42304 19.31 3490 22.35 12938 21.52 10880 22.17 11422 15.57 3385 11.96 189 6.35
48 2023-12-02 44713 18.03 3648 21.98 14100 22.18 11174 20.06 11903 12.58 3639 10.31 249 7.63
49 2023-12-09 46876 17.53 3654 20.17 14467 22.78 11644 18.67 12452 12.41 4272 10.30 387 6.98
50 2023-12-16 48215 17.78 4065 18.60 15835 23.97 12142 18.69 12089 11.16 3746 10.25 338 6.21
51 2023-12-23 48372 16.81 4353 15.81 16682 22.12 11548 18.73 11472 9.91 3952 10.55 365 9.86
52 2023-12-30 46997 15.35 4234 14.67 15739 19.65 11522 17.68 10314 9.95 4930 8.64 258 5.04
1 2024-01-06 48060 14.51 4471 12.68 15874 17.71 11545 16.83 10577 10.62 5300 9.57 293 7.17
2 2024-01-13 44189 13.03 4333 11.98 13921 14.75 11346 14.29 9475 9.91 4862 12.48 252 6.35
3 2024-01-20 38190 11.35 3750 10.64 11599 11.60 9942 12.87 8591 9.92 4141 10.92 167 4.19
4 2024-01-27 37089 10.19 3784 9.49 11052 9.79 9238 11.40 8358 8.95 4459 11.89 198 4.04
5 2024-02-03 36771 9.34 3908 8.75 10995 8.58 9011 9.75 8265 9.56 4420 10.63 172 5.81
6 2024-02-10 34740 8.79 3499 8.80 10544 7.33 8519 8.48 8042 10.12 3940 10.74 196 7.14
7 2024-02-17 35098 8.12 3185 8.92 11071 6.64 8901 7.48 8021 9.21 3722 11.04 198 7.07
8 2024-02-24 34145 7.49 3098 8.23 10925 5.10 8077 6.82 7890 8.66 3872 12.45 283 10.25
9 2024-03-02 33779 7.03 2992 7.02 10468 4.88 8299 6.21 7831 8.42 3972 11.76 217 6.45
10 2024-03-09 32484 6.24 3112 7.42 9479 3.46 7884 4.67 7845 7.71 3860 12.31 304 6.25
11 2024-03-16 32416 6.13 3346 6.90 9376 3.03 7702 5.47 7795 7.36 3904 11.63 293 7.51
12 2024-03-23 30991 5.17 3206 7.74 8609 2.25 7772 4.26 7547 6.15 3552 9.80 305 5.25
13 2024-03-30 29569 4.85 2831 6.85 8537 2.69 6962 4.28 7517 4.98 3450 9.25 272 7.35
14 2024-04-06 29672 4.72 2964 6.01 8696 2.38 7100 4.63 7336 4.43 3303 10.54 273 5.13
15 2024-04-13 29332 4.91 3243 6.38 8694 2.29 6878 5.18 7260 5.33 2987 9.24 270 5.93
16 2024-04-20 27218 4.81 2970 6.50 7913 2.39 6469 4.61 6615 5.22 3017 9.02 234 5.56
17 2024-04-27 26661 5.53 2790 7.53 7721 3.55 6117 5.46 6834 5.27 2961 9.32 238 8.40
18 2024-05-04 27314 6.48 2984 5.90 7595 3.49 6486 7.96 6812 6.47 3198 10.60 239 13.81
19 2024-05-11 26246 7.43 2788 7.71 7355 4.94 6071 7.79 6657 6.89 3142 13.11 233 12.02
20 2024-05-18 25114 8.15 2828 8.52 7115 6.16 5701 8.91 6260 7.86 2978 11.99 232 5.17

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 14543 0.69 0.06 984 0.00 0.00 3339 0.24 0.15 4324 0.39 0.09 3654 0.57 0.00 2158 2.46 0.00 84 2.38 0.00
36 2023-09-09 15430 0.43 0.06 1047 0.00 0.00 3649 0.19 0.03 4455 0.31 0.09 4069 0.37 0.05 2117 1.46 0.09 93 0.00 0.00
37 2023-09-16 18035 0.48 0.03 1216 0.08 0.00 4174 0.41 0.07 5145 0.29 0.00 4705 0.40 0.04 2703 1.29 0.04 92 0.00 0.00
38 2023-09-23 20121 0.51 0.02 1388 0.07 0.00 4734 0.30 0.00 5652 0.21 0.05 5325 0.62 0.02 2928 1.47 0.00 94 0.00 0.00
39 2023-09-30 21530 0.51 0.09 1403 0.14 0.07 4847 0.21 0.08 6186 0.37 0.11 5371 0.48 0.11 3598 1.36 0.06 125 0.00 0.00
40 2023-10-07 23658 0.64 0.05 1775 0.34 0.00 5628 0.37 0.04 6456 0.31 0.00 5803 0.74 0.16 3878 1.60 0.05 118 0.00 0.00
41 2023-10-14 23208 0.49 0.03 1938 0.57 0.00 4978 0.22 0.06 6283 0.30 0.00 6067 0.73 0.05 3828 0.73 0.03 114 0.00 0.00
42 2023-10-21 24067 0.73 0.08 2029 0.69 0.05 5110 0.37 0.02 6834 0.47 0.07 6370 1.13 0.13 3599 1.06 0.11 125 0.00 0.00
43 2023-10-28 23268 1.16 0.10 1979 0.96 0.00 5450 0.64 0.11 6814 0.50 0.06 5872 2.33 0.17 3039 1.45 0.10 114 0.88 0.00
44 2023-11-04 25317 2.63 0.10 1914 1.25 0.05 5705 0.63 0.07 6996 0.51 0.06 6996 6.80 0.17 3562 2.58 0.11 144 2.08 0.00
45 2023-11-11 26520 4.93 0.14 2069 2.03 0.14 5970 0.84 0.07 7240 1.22 0.07 7656 12.87 0.26 3460 3.96 0.14 125 4.00 0.00
46 2023-11-18 28583 7.24 0.16 2219 3.11 0.09 6454 1.36 0.09 7797 2.68 0.15 8734 18.14 0.26 3258 3.59 0.12 121 2.48 0.00
47 2023-11-25 29879 8.81 0.12 2521 4.60 0.04 6561 2.04 0.06 8070 2.69 0.02 9078 21.15 0.28 3517 6.43 0.09 132 15.15 0.00
48 2023-12-02 32859 11.62 0.26 2743 4.89 0.11 7199 3.78 0.15 8447 4.45 0.17 10485 24.44 0.47 3836 10.79 0.21 149 38.93 0.00
49 2023-12-09 34573 14.74 0.29 2817 9.66 0.11 8141 7.14 0.12 8466 7.08 0.21 11298 26.93 0.57 3590 13.12 0.11 261 49.81 0.00
50 2023-12-16 38612 15.32 0.36 3363 12.73 0.09 10087 11.63 0.12 9265 8.47 0.41 11116 24.56 0.71 4496 14.23 0.16 285 56.49 0.00
51 2023-12-23 40839 16.78 0.45 3820 19.08 0.31 12090 15.38 0.12 9246 11.39 0.51 10656 21.67 0.91 4747 16.64 0.29 280 40.36 0.00
52 2023-12-30 42482 18.18 0.52 3874 20.99 0.36 13501 19.37 0.07 9830 15.02 0.63 9720 17.61 1.26 5352 18.89 0.24 205 46.34 0.00
1 2024-01-06 43260 14.49 0.60 4132 17.91 0.36 13858 17.30 0.22 9869 11.67 0.54 9519 11.29 1.45 5634 14.55 0.39 248 33.47 0.00
2 2024-01-13 40233 11.16 0.56 3864 15.79 0.31 12702 15.32 0.19 9980 9.08 0.59 8491 5.94 1.33 4963 9.83 0.32 233 15.88 0.43
3 2024-01-20 35213 10.27 0.79 3422 14.23 0.94 11099 14.72 0.36 8812 8.65 0.45 7343 4.09 2.07 4397 9.71 0.34 140 5.71 0.00
4 2024-01-27 35174 11.10 1.08 3461 14.59 1.36 11277 17.65 0.28 8274 8.87 0.59 7261 2.31 2.91 4722 10.67 0.87 179 2.79 0.00
5 2024-02-03 35522 11.28 1.48 3608 14.61 2.02 12036 19.09 0.61 7738 8.30 1.02 7380 1.91 3.20 4626 8.58 1.25 134 2.24 2.99
6 2024-02-10 33997 10.37 1.74 3230 12.38 1.98 11857 18.01 1.05 7402 7.23 1.50 7230 1.77 3.28 4119 7.99 1.24 159 0.00 3.14
7 2024-02-17 33917 9.43 2.18 2882 8.78 2.74 11966 16.61 1.53 7689 7.40 1.87 7229 1.58 3.62 4006 6.81 1.40 145 1.38 11.03
8 2024-02-24 33294 8.01 3.17 2914 7.41 2.88 11748 14.22 2.63 7189 6.37 2.35 7030 1.07 5.65 4225 5.80 1.82 188 0.53 9.57
9 2024-03-02 32543 6.72 4.03 2834 7.13 4.13 11373 10.92 4.28 7133 5.72 2.90 6806 1.59 5.80 4231 5.25 1.96 166 2.41 13.25
10 2024-03-09 31700 5.55 5.12 2826 7.01 6.37 10775 8.84 5.27 6873 4.89 4.09 6835 1.29 6.63 4160 4.33 2.81 231 2.16 9.96
11 2024-03-16 30555 4.36 5.42 3170 6.03 4.95 9835 6.05 5.63 6948 3.94 3.80 6297 1.46 8.15 4077 4.42 3.63 228 0.44 8.77
12 2024-03-23 30633 3.30 5.82 3097 4.91 5.97 9578 3.82 5.54 6960 3.30 3.39 6918 1.45 9.35 3820 4.08 3.46 260 3.08 19.62
13 2024-03-30 29850 2.71 6.60 2909 3.82 7.25 9561 3.50 6.66 6384 2.44 3.29 7087 1.30 10.50 3681 3.07 3.15 228 0.88 23.25
14 2024-04-06 30169 2.28 6.76 2945 2.51 7.13 9682 2.55 8.14 6699 2.70 3.43 7167 1.48 9.24 3455 2.26 3.01 221 0.45 20.81
15 2024-04-13 29480 1.80 6.02 3049 2.76 5.02 9725 1.96 7.98 6251 1.70 3.47 7115 1.14 7.45 3106 2.03 2.29 234 2.56 11.97
16 2024-04-20 27265 1.35 4.97 2878 2.50 4.66 8648 1.06 6.97 5976 1.59 2.34 6266 0.64 6.11 3306 2.06 2.48 191 0.00 7.33
17 2024-04-27 26772 1.15 4.71 2668 1.99 3.37 8474 0.78 6.50 5585 1.04 1.88 6698 0.58 6.32 3146 2.96 2.61 201 0.00 4.48
18 2024-05-04 27146 1.14 4.18 2733 1.72 3.07 8454 0.72 5.88 5723 1.10 1.76 6644 0.84 5.30 3399 2.44 2.68 193 0.00 5.18
19 2024-05-11 26314 0.92 3.27 2561 1.72 2.69 8470 0.65 4.55 5593 0.54 1.09 6102 0.64 4.02 3375 2.16 2.61 213 0.47 6.10
20 2024-05-18 23638 0.66 2.40 2666 0.75 2.44 7662 0.34 3.59 5170 0.41 0.74 4857 0.66 2.76 3089 1.78 1.36 194 0.52 7.22

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 13610 0.58 969 0.00 2540 1.14 4324 0.81 3535 0.20 2158 0.32 84 1.19
36 2023-09-09 14361 0.71 1047 0.57 2750 1.64 4455 0.88 3915 0.18 2101 0.24 93 0.00
37 2023-09-16 16808 0.82 1201 0.25 3181 1.67 5138 1.01 4494 0.38 2702 0.41 92 1.09
38 2023-09-23 18782 1.15 1381 1.30 3652 2.27 5652 1.43 5075 0.37 2928 0.51 94 0.00
39 2023-09-30 20217 1.14 1392 0.79 3788 2.38 6186 1.42 5128 0.43 3598 0.56 125 0.00
40 2023-10-07 22042 1.35 1761 0.28 4333 2.75 6456 1.95 5496 0.36 3878 0.72 118 0.00
41 2023-10-14 21748 1.80 1927 0.83 3897 3.70 6281 2.48 5701 0.63 3828 1.04 114 0.00
42 2023-10-21 22479 2.38 2015 0.69 3889 4.78 6834 3.72 6017 0.58 3599 1.25 125 0.00
43 2023-10-28 21745 3.25 1970 1.78 4234 6.24 6814 4.21 5574 1.22 3039 1.74 114 0.00
44 2023-11-04 23657 4.07 1904 2.15 4506 6.88 6997 5.80 6544 1.79 3562 2.36 144 2.78
45 2023-11-11 24764 5.12 2058 2.77 4680 7.97 7241 7.62 7201 2.14 3459 3.58 125 6.40
46 2023-11-18 26517 5.85 2195 2.41 4910 10.14 7796 7.91 8237 2.87 3258 4.27 121 7.44
47 2023-11-25 27491 6.81 2363 4.70 4975 11.82 8068 8.66 8508 3.24 3445 5.28 132 11.36
48 2023-12-02 30258 6.99 2549 5.88 5533 11.46 8447 8.49 9797 3.57 3783 6.66 149 8.72
49 2023-12-09 31232 7.38 2665 7.69 5930 11.11 8465 7.40 10436 4.53 3475 9.35 261 6.90
50 2023-12-16 34607 7.26 3004 8.46 7537 9.73 9261 5.99 10173 5.17 4347 9.50 285 10.53
51 2023-12-23 35988 7.29 3258 9.45 8774 9.14 9244 4.64 9820 6.47 4615 9.36 277 6.14
52 2023-12-30 37639 7.41 3431 8.57 9849 7.53 9829 4.62 9130 8.48 5196 9.49 204 15.69
1 2024-01-06 37934 7.10 3630 9.12 9953 7.31 9871 4.03 8828 7.56 5404 9.88 248 13.71
2 2024-01-13 35286 6.26 3383 9.16 9029 6.14 9975 3.27 7930 7.65 4737 7.81 232 17.67
3 2024-01-20 30827 6.13 2936 9.91 7837 5.82 8808 2.99 6892 8.21 4214 6.76 140 20.00
4 2024-01-27 30616 5.85 3067 10.01 7786 5.48 8260 2.62 6810 6.83 4514 7.35 179 24.02
5 2024-02-03 30446 5.91 3235 9.52 7985 5.07 7736 2.12 6932 8.18 4426 7.32 132 24.24
6 2024-02-10 29075 5.21 2949 10.07 7832 4.60 7404 1.62 6794 6.74 3937 6.27 159 20.75
7 2024-02-17 29028 4.49 2610 8.12 7969 4.56 7689 1.16 6769 6.04 3846 4.91 145 27.59
8 2024-02-24 28917 4.78 2715 7.18 8169 4.55 7189 1.14 6600 6.83 4057 5.57 187 29.41
9 2024-03-02 28626 3.79 2712 6.42 8150 3.99 7134 1.23 6368 4.35 4096 4.32 166 26.51
10 2024-03-09 27634 3.64 2700 6.52 7381 4.09 6873 0.89 6407 3.59 4043 3.96 230 33.91
11 2024-03-16 26585 3.18 3019 5.13 6559 3.58 6948 0.88 5896 3.43 3935 3.66 228 21.05
12 2024-03-23 26748 2.49 2944 3.53 6480 3.33 6961 0.49 6396 2.94 3707 2.81 260 7.69
13 2024-03-30 26067 2.32 2642 3.14 6609 3.78 6384 0.58 6649 2.20 3555 1.83 228 10.96
14 2024-04-06 26397 2.08 2685 2.76 6714 3.07 6704 0.69 6709 2.04 3364 2.02 221 8.60
15 2024-04-13 25526 1.79 2716 2.06 6642 2.57 6232 0.64 6679 1.99 3023 1.26 234 7.69
16 2024-04-20 23872 1.68 2470 1.74 6130 2.51 5976 0.67 5881 1.56 3224 1.67 191 8.90
17 2024-04-27 23420 1.47 2486 1.13 5837 2.60 5585 0.64 6282 1.26 3029 1.02 201 8.96
18 2024-05-04 24050 1.27 2631 1.33 5969 2.66 5718 0.40 6234 0.80 3305 0.82 193 5.70
19 2024-05-11 23187 1.07 2364 1.02 6007 2.23 5592 0.34 5709 0.75 3302 0.55 213 5.16
20 2024-05-18 21224 1.00 2531 1.38 5686 1.78 5170 0.27 4560 0.66 3083 0.52 194 8.25

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 6234 1.99 362 1.38 847 3.90 3406 1.85 984 1.02 635 2.05
36 2023-09-09 6321 1.49 355 1.69 868 2.19 3420 1.43 1133 0.97 545 1.65
37 2023-09-16 7419 1.60 401 2.49 1053 2.18 3886 1.34 1326 1.06 753 2.66
38 2023-09-23 8139 1.77 430 2.79 1122 2.85 4366 1.74 1445 0.90 776 1.42
39 2023-09-30 8627 1.32 401 1.25 1117 1.88 4948 1.33 1415 1.06 746 0.94
40 2023-10-07 8791 1.34 467 3.43 1178 2.04 4850 1.20 1541 0.39 755 1.85
41 2023-10-14 8879 1.28 491 1.63 1094 1.37 4898 1.16 1638 1.04 758 2.24
42 2023-10-21 9281 1.59 498 2.21 1050 1.52 5293 1.51 1707 1.46 733 2.18
43 2023-10-28 9085 1.21 474 1.48 1063 1.98 5223 0.96 1656 0.85 669 2.69
44 2023-11-04 9496 1.44 492 2.24 1067 2.06 5215 1.00 1938 1.24 784 3.57
45 2023-11-11 9826 1.65 467 2.78 1257 1.83 5242 1.11 2076 1.35 784 5.10
46 2023-11-18 10441 1.39 500 2.20 1426 1.33 5505 1.24 2191 0.87 819 3.42
47 2023-11-25 10872 1.55 620 1.77 1442 1.04 5708 1.47 2195 1.18 907 3.53
48 2023-12-02 11676 1.51 676 2.37 1587 1.32 5967 1.39 2463 1.10 983 2.95
49 2023-12-09 11621 1.39 668 1.65 1630 1.10 6040 1.44 2537 1.14 746 2.14
50 2023-12-16 12631 1.46 730 1.92 1664 0.72 6696 1.36 2459 1.46 1082 2.96
51 2023-12-23 12648 1.35 768 1.56 1857 0.54 6421 1.46 2408 0.79 1194 3.02
52 2023-12-30 12871 1.35 709 1.55 2004 0.85 6809 1.29 2168 0.97 1181 3.13
1 2024-01-06 13434 1.48 812 1.72 2046 0.59 7059 1.60 2288 1.18 1229 2.69
2 2024-01-13 13182 1.17 924 1.73 1882 0.53 7137 1.16 2111 1.09 1128 1.95
3 2024-01-20 11423 1.08 704 1.28 1843 0.49 6099 1.18 1774 1.13 1003 1.30
4 2024-01-27 11007 1.16 834 0.72 1793 0.28 5677 1.41 1707 1.41 996 1.31
5 2024-02-03 11179 1.45 794 1.26 1833 0.55 5534 1.66 1933 1.86 1085 1.29
6 2024-02-10 10714 1.56 782 0.77 1832 0.49 5194 1.73 1937 1.55 969 3.30
7 2024-02-17 10731 1.54 619 1.29 1863 0.54 5369 1.42 1898 2.32 982 2.75
8 2024-02-24 10455 1.84 632 0.47 1825 1.59 5114 1.82 1905 2.20 979 2.55
9 2024-03-02 10419 2.40 587 1.02 1800 1.11 5157 2.83 1793 2.90 1082 2.40
10 2024-03-09 9897 2.74 483 2.69 1681 1.84 4982 2.65 1749 3.66 1002 3.09
11 2024-03-16 9750 3.43 626 1.92 1433 1.88 5071 3.45 1624 4.99 996 3.92
12 2024-03-23 9990 4.10 592 3.21 1588 2.33 5076 4.10 1810 4.92 924 6.17
13 2024-03-30 9394 4.52 581 3.96 1540 3.70 4578 4.59 1768 4.69 927 5.61
14 2024-04-06 9666 4.52 597 4.69 1640 3.48 4695 4.35 1854 5.50 880 5.23
15 2024-04-13 9502 5.96 626 7.35 1621 4.32 4485 5.11 1927 8.46 843 6.88
16 2024-04-20 9022 5.48 568 7.75 1604 3.12 4271 5.64 1699 5.77 880 6.93
17 2024-04-27 8865 6.63 658 9.42 1588 5.10 4004 5.72 1817 7.87 798 9.15
18 2024-05-04 9298 6.55 711 10.13 1558 5.58 4219 5.93 1902 7.26 908 6.83
19 2024-05-11 8823 6.99 686 10.79 1657 5.25 4051 6.47 1566 7.54 863 8.81
20 2024-05-18 8099 6.95 889 11.36 1522 4.60 3801 5.92 1188 8.25 699 9.87

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 6238 1.62 362 1.93 851 2.70 3406 0.91 984 2.44 635 2.52
36 2023-09-09 6332 1.52 355 1.97 879 2.28 3420 0.82 1133 2.03 545 3.30
37 2023-09-16 7438 1.47 401 2.00 1071 2.43 3887 0.90 1326 1.96 753 1.86
38 2023-09-23 8149 0.93 429 1.17 1134 1.06 4365 0.62 1445 1.59 776 1.16
39 2023-09-30 8614 1.15 401 1.00 1129 2.04 4923 0.69 1415 1.63 746 2.01
40 2023-10-07 8809 1.41 467 2.36 1195 2.85 4851 0.66 1541 1.69 755 2.78
41 2023-10-14 8913 1.38 491 1.63 1111 3.42 4915 0.75 1638 1.47 758 2.11
42 2023-10-21 9286 1.43 498 1.20 1058 3.59 5292 0.76 1705 1.47 733 3.27
43 2023-10-28 9099 1.48 474 2.74 1077 3.62 5223 0.69 1656 1.63 669 2.99
44 2023-11-04 9514 1.76 492 2.03 1085 3.87 5215 1.04 1938 2.12 784 2.55
45 2023-11-11 9843 1.45 467 2.57 1274 2.98 5242 0.92 2076 1.64 784 1.40
46 2023-11-18 10452 2.03 500 4.60 1437 4.31 5505 0.94 2191 1.92 819 4.03
47 2023-11-25 10920 1.90 620 2.74 1461 3.97 5712 1.07 2194 1.50 911 3.84
48 2023-12-02 11737 2.15 676 3.25 1613 3.84 5967 1.36 2462 2.03 983 3.05
49 2023-12-09 11699 1.83 668 2.84 1652 3.75 6041 1.18 2537 1.26 746 3.62
50 2023-12-16 12719 2.00 730 2.19 1681 3.09 6696 1.78 2459 1.67 1082 2.40
51 2023-12-23 12035 1.55 768 1.82 1875 2.61 5726 0.89 2408 1.45 1194 3.02
52 2023-12-30 10983 1.76 709 2.12 2010 2.49 4852 0.80 2167 1.43 1181 4.74
1 2024-01-06 11675 1.48 812 1.11 2050 2.20 5219 0.75 2288 1.14 1229 4.15
2 2024-01-13 12078 1.25 924 1.52 1901 2.31 5943 0.59 2111 1.33 1126 2.49
3 2024-01-20 11461 1.11 704 1.56 1851 1.19 6091 0.64 1774 1.35 1003 2.89
4 2024-01-27 11062 1.56 834 2.88 1807 2.32 5675 0.78 1706 1.64 996 3.41
5 2024-02-03 11223 1.62 794 2.90 1841 2.55 5534 0.74 1933 1.55 1085 3.59
6 2024-02-10 10761 1.84 782 3.45 1852 2.59 5192 0.67 1935 1.45 969 5.88
7 2024-02-17 10779 1.22 619 1.29 1875 1.97 5369 0.60 1898 1.16 982 2.95
8 2024-02-24 10525 1.30 632 2.06 1837 2.01 5114 0.80 1905 0.89 979 2.96
9 2024-03-02 10484 1.65 587 4.26 1822 2.25 5157 1.01 1793 1.06 1082 2.87
10 2024-03-09 9989 1.31 483 1.86 1708 1.70 4982 0.78 1748 1.54 1002 2.30
11 2024-03-16 9808 1.29 626 1.44 1458 1.99 5072 0.79 1623 1.48 996 2.41
12 2024-03-23 10056 1.42 592 1.35 1614 1.49 5076 1.18 1809 1.00 924 3.46
13 2024-03-30 9442 1.63 581 2.07 1565 3.07 4578 0.87 1768 0.96 927 3.99
14 2024-04-06 9717 1.58 597 2.01 1657 3.02 4695 0.75 1853 1.03 880 4.20
15 2024-04-13 9547 1.39 626 2.08 1637 2.14 4485 1.11 1927 0.67 843 2.61
16 2024-04-20 9069 1.53 568 2.46 1623 2.28 4271 0.98 1699 1.12 880 2.95
17 2024-04-27 8904 1.35 658 2.28 1602 2.68 4004 0.75 1817 0.99 798 1.75
18 2024-05-04 9341 1.46 711 2.39 1583 2.59 4219 0.90 1902 0.89 908 2.53
19 2024-05-11 8845 1.28 686 2.48 1669 2.28 4051 0.74 1566 0.83 863 1.74
20 2024-05-18 8139 1.57 889 1.91 1539 2.86 3802 0.82 1188 1.52 699 2.58

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 6260 0.34 362 0.00 848 1.42 3407 0.21 1008 0.10 635 0.16
36 2023-09-09 6354 0.39 355 0.28 867 1.38 3423 0.20 1164 0.26 545 0.37
37 2023-09-16 7455 0.39 401 0.50 1053 0.76 3886 0.36 1362 0.07 753 0.53
38 2023-09-23 8194 0.38 429 0.00 1124 1.07 4365 0.14 1500 0.13 776 1.42
39 2023-09-30 8680 0.51 401 0.25 1118 0.89 4948 0.36 1467 0.34 746 1.34
40 2023-10-07 8828 0.32 457 0.44 1180 0.76 4853 0.14 1583 0.32 755 0.66
41 2023-10-14 8911 0.37 484 0.00 1096 1.00 4915 0.20 1658 0.12 758 1.32
42 2023-10-21 9321 0.46 498 0.20 1050 1.33 5298 0.32 1742 0.17 733 1.09
43 2023-10-28 9083 0.46 474 0.63 1066 1.41 5200 0.31 1674 0.18 669 0.75
44 2023-11-04 9519 0.55 492 0.20 1070 1.96 5218 0.17 1955 0.61 784 1.15
45 2023-11-11 9825 0.60 467 0.21 1256 2.15 5244 0.21 2074 0.63 784 0.89
46 2023-11-18 10315 0.79 500 0.40 1426 2.38 5505 0.36 2180 0.37 704 2.56
47 2023-11-25 10920 1.00 620 0.97 1442 2.57 5715 0.44 2210 0.59 911 2.96
48 2023-12-02 11703 0.91 676 0.89 1585 2.33 5965 0.47 2458 0.49 983 2.34
49 2023-12-09 11654 1.20 668 1.20 1635 2.39 6037 0.61 2513 1.95 746 0.94
50 2023-12-16 12683 1.31 730 1.78 1669 2.52 6707 0.63 2424 1.61 1082 2.77
51 2023-12-23 12659 1.59 768 1.56 1857 2.48 6415 0.78 2361 2.50 1194 2.85
52 2023-12-30 12881 1.76 709 2.26 2006 2.14 6809 0.98 2112 2.27 1181 4.49
1 2024-01-06 13431 2.20 812 1.85 2048 2.15 7012 1.07 2253 3.99 1229 5.78
2 2024-01-13 13207 1.64 924 1.41 1887 1.59 7144 0.62 2053 3.85 1126 4.26
3 2024-01-20 11426 2.20 704 1.56 1837 2.34 6103 1.23 1741 4.19 1003 4.79
4 2024-01-27 11026 2.11 834 1.92 1793 1.78 5678 1.13 1681 4.34 996 4.82
5 2024-02-03 11160 2.27 794 2.39 1831 2.46 5534 1.36 1880 2.87 1085 5.44
6 2024-02-10 10709 2.54 782 2.94 1828 2.63 5191 1.58 1908 2.62 969 7.12
7 2024-02-17 10757 2.82 619 2.91 1864 3.70 5376 2.14 1880 1.91 982 6.62
8 2024-02-24 10425 3.15 632 3.96 1825 2.79 5113 2.62 1818 2.31 979 7.76
9 2024-03-02 10398 3.92 587 3.75 1802 4.99 5157 3.37 1727 2.49 1082 7.30
10 2024-03-09 9915 4.57 483 5.38 1677 5.66 4991 4.49 1696 1.83 1002 7.58
11 2024-03-16 9742 4.88 626 7.67 1433 5.65 5084 4.76 1570 2.04 996 7.13
12 2024-03-23 9948 4.63 592 5.57 1589 5.48 5085 4.90 1717 1.75 924 6.71
13 2024-03-30 9329 5.02 581 7.40 1536 6.90 4589 4.73 1673 1.61 927 8.09
14 2024-04-06 9626 5.14 597 7.54 1639 7.02 4699 5.60 1776 1.35 880 5.34
15 2024-04-13 9417 4.64 626 5.43 1615 5.76 4489 5.57 1815 0.94 843 5.10
16 2024-04-20 8934 5.17 568 6.16 1605 7.60 4271 5.85 1582 1.14 880 4.20
17 2024-04-27 8775 4.22 658 5.17 1588 6.17 4004 4.37 1702 1.41 798 4.76
18 2024-05-04 9155 3.94 711 4.64 1554 5.34 4219 4.60 1745 0.69 908 4.30
19 2024-05-11 8751 3.91 686 4.52 1655 5.38 4053 4.29 1484 0.94 863 3.94
20 2024-05-18 8081 3.59 889 4.95 1521 4.08 3802 3.87 1148 0.70 699 4.15

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 5345 12.50 362 20.72 - - 3409 10.44 966 14.60 608 15.79
36 2023-09-09 5414 14.85 355 25.35 - - 3423 12.80 1119 16.80 516 17.05
37 2023-09-16 6331 18.29 401 23.69 - - 3887 16.08 1314 22.37 722 19.81
38 2023-09-23 6991 20.25 429 27.51 - - 4365 17.11 1428 25.14 747 24.63
39 2023-09-30 7479 18.52 401 26.43 - - 4948 15.74 1398 22.17 715 25.31
40 2023-10-07 7559 17.45 467 23.55 - - 4853 14.77 1515 20.99 706 23.80
41 2023-10-14 7762 15.74 491 23.01 - - 4915 13.77 1612 16.00 717 23.15
42 2023-10-21 8204 13.12 498 22.09 - - 5298 10.82 1681 13.50 695 22.16
43 2023-10-28 7977 12.52 474 16.03 - - 5227 9.95 1624 15.58 637 23.23
44 2023-11-04 8385 10.83 492 17.07 - - 5218 8.39 1916 12.21 736 20.52
45 2023-11-11 8530 10.70 467 16.70 - - 5244 8.68 2051 10.48 743 21.53
46 2023-11-18 8958 8.64 500 14.20 - - 5506 6.79 2161 8.42 779 18.87
47 2023-11-25 9427 7.62 620 11.94 - - 5716 5.86 2186 7.55 883 15.63
48 2023-12-02 10068 6.79 676 9.76 - - 5970 5.19 2427 6.47 959 15.43
49 2023-12-09 9980 6.00 668 6.74 - - 6046 4.50 2516 6.20 695 17.70
50 2023-12-16 11005 5.90 730 7.81 - - 6708 4.62 2437 4.97 1059 14.45
51 2023-12-23 10800 5.56 768 6.51 - - 6434 3.73 2380 5.88 1154 14.47
52 2023-12-30 10881 4.71 709 5.50 - - 6808 3.30 2155 4.83 1145 12.31
1 2024-01-06 11366 4.80 812 4.43 - - 7012 3.76 2268 5.51 1197 9.69
2 2024-01-13 11322 4.43 924 4.22 - - 7146 3.20 2090 5.07 1089 11.48
3 2024-01-20 9564 4.59 704 4.26 - - 6103 3.16 1751 6.40 968 10.02
4 2024-01-27 9212 4.37 834 4.68 - - 5678 3.12 1695 6.02 961 8.43
5 2024-02-03 9317 5.02 794 5.54 - - 5534 3.27 1918 7.66 1035 9.08
6 2024-02-10 8831 6.26 782 8.82 - - 5191 4.26 1909 7.54 918 12.42
7 2024-02-17 8854 6.18 619 6.30 - - 5376 4.35 1882 8.29 941 12.01
8 2024-02-24 8644 6.21 632 5.85 - - 5113 4.99 1896 7.23 945 10.69
9 2024-03-02 8601 6.48 587 6.30 - - 5157 4.65 1773 7.61 1041 13.74
10 2024-03-09 8230 6.52 483 9.11 - - 4991 4.81 1734 7.55 956 12.45
11 2024-03-16 8300 6.67 626 6.55 - - 5084 5.39 1593 7.34 964 12.03
12 2024-03-23 8413 6.63 592 7.26 - - 5085 5.45 1795 7.30 900 11.56
13 2024-03-30 7851 7.36 581 8.61 - - 4589 5.14 1747 9.90 911 12.84
14 2024-04-06 8012 7.54 598 10.54 - - 4699 6.11 1828 8.97 852 9.98
15 2024-04-13 7830 8.51 626 11.98 - - 4462 6.99 1904 9.93 809 10.63
16 2024-04-20 7409 9.50 568 11.62 - - 4273 7.79 1676 9.43 864 16.32
17 2024-04-27 7263 11.52 658 15.81 - - 4006 9.89 1800 11.11 774 17.31
18 2024-05-04 7717 10.39 711 13.50 - - 4220 8.08 1884 11.09 884 17.19
19 2024-05-11 7153 10.29 686 15.31 - - 4053 7.97 1557 10.66 847 16.65
20 2024-05-18 6563 10.50 889 15.86 - - 3802 7.21 1178 12.99 672 17.26

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 5054 0.28 362 0.00 847 0.47 2230 0.13 1007 0.60 608 0.16
36 2023-09-09 5195 0.42 355 0.56 868 0.81 2285 0.09 1171 0.77 516 0.39
37 2023-09-16 6174 0.23 401 0.50 1053 0.47 2636 0.23 1362 0.00 722 0.14
38 2023-09-23 6796 0.46 429 0.00 1122 0.80 2995 0.40 1503 0.40 747 0.54
39 2023-09-30 7026 0.28 401 0.00 1117 0.45 3325 0.21 1468 0.48 715 0.14
40 2023-10-07 7305 0.26 467 0.21 1178 0.08 3390 0.18 1587 0.25 683 1.02
41 2023-10-14 7435 0.32 491 0.20 1094 0.73 3461 0.12 1672 0.60 717 0.14
42 2023-10-21 7697 0.17 498 0.20 1050 0.48 3707 0.05 1747 0.23 695 0.14
43 2023-10-28 7576 0.38 473 0.42 1065 0.38 3707 0.30 1694 0.53 637 0.47
44 2023-11-04 7754 0.37 476 0.21 1067 0.28 3508 0.43 1967 0.20 736 0.82
45 2023-11-11 8119 0.42 467 0.86 1187 0.51 3607 0.28 2115 0.38 743 0.81
46 2023-11-18 8674 0.65 500 0.20 1324 0.98 3838 0.42 2233 0.99 779 0.51
47 2023-11-25 9069 0.65 620 0.65 1357 0.96 3977 0.55 2232 0.54 883 0.91
48 2023-12-02 9880 0.76 676 0.74 1518 1.05 4241 0.42 2486 0.72 959 1.88
49 2023-12-09 9440 1.12 668 1.20 1523 1.64 4007 0.57 2547 1.33 695 2.30
50 2023-12-16 10458 1.47 730 0.41 1583 1.58 4616 1.47 2470 1.58 1059 1.79
51 2023-12-23 10483 1.77 768 1.30 1765 2.10 4389 1.66 2407 1.58 1154 2.43
52 2023-12-30 10328 2.48 709 1.55 1885 2.97 4422 2.49 2167 2.08 1145 2.97
1 2024-01-06 10903 3.06 812 2.96 1861 2.10 4722 3.37 2311 2.81 1197 3.93
2 2024-01-13 10891 3.19 924 3.03 1719 2.50 5030 3.14 2129 3.85 1089 3.31
3 2024-01-20 9527 3.89 704 5.11 1698 4.18 4360 3.78 1797 3.78 968 3.20
4 2024-01-27 9111 5.19 834 5.28 1640 5.49 3941 5.76 1735 4.27 961 3.95
5 2024-02-03 9137 5.10 794 4.79 1647 5.10 3717 6.27 1944 3.34 1035 4.44
6 2024-02-10 8766 6.80 782 5.37 1653 9.50 3456 7.00 1957 5.01 918 6.21
7 2024-02-17 8846 7.73 619 6.30 1700 8.12 3661 8.96 1925 6.39 941 5.95
8 2024-02-24 8546 8.28 632 7.28 1644 10.28 3416 8.17 1909 7.02 945 8.47
9 2024-03-02 8590 7.09 587 6.47 1643 7.49 3511 8.32 1808 5.53 1041 5.38
10 2024-03-09 8072 6.84 483 4.97 1522 6.96 3342 8.02 1769 5.48 956 5.96
11 2024-03-16 8007 7.18 626 4.95 1287 7.30 3476 8.20 1654 6.83 964 5.39
12 2024-03-23 8202 6.79 592 6.08 1455 6.19 3452 7.42 1803 6.60 900 6.22
13 2024-03-30 7797 6.02 581 6.54 1418 5.92 3111 6.49 1776 5.01 911 6.15
14 2024-04-06 7932 6.77 598 7.19 1495 6.29 3134 6.83 1853 7.12 852 6.34
15 2024-04-13 7843 5.46 626 4.31 1508 5.57 2974 6.22 1926 4.67 809 5.19
16 2024-04-20 7391 4.92 568 6.34 1452 4.41 2807 5.20 1700 5.18 864 3.47
17 2024-04-27 7302 4.78 658 5.17 1450 4.83 2603 4.61 1817 5.83 774 2.45
18 2024-05-04 7706 4.43 711 5.63 1466 2.86 2747 5.28 1898 4.58 884 3.05
19 2024-05-11 7347 3.39 686 3.64 1533 3.13 2693 3.12 1588 4.60 847 2.24
20 2024-05-18 6592 2.58 889 3.37 1414 2.40 2420 2.48 1197 2.34 672 2.68

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