Historical Data
Influenza
Summary of laboratory-confirmed seasonal influenza cases in Alberta, 2021-2022 to 2025-2026
|
Season
|
Cases (n)
|
Influenza A cases (n)
|
Influenza B cases (n)
|
Hospitalizations (n)
|
ICU admissions (n)
|
Deaths (n)
|
|
2025-2026
|
16,991
|
14,517
|
2,474
|
3,859
|
291
|
259
|
|
2024-2025
|
14,704
|
13,270
|
1,434
|
3,732
|
313
|
236
|
|
2023-2024
|
16,227
|
11,875
|
4,352
|
3,358
|
364
|
171
|
|
2022-2023
|
9,783
|
9,069
|
714
|
2,192
|
222
|
121
|
|
2021-2022
|
2,906
|
2,903
|
3
|
532
|
54
|
20
|
Note: A hospital or ICU admission in a laboratory-confirmed influenza case is counted when the reason for admission is either directly resulting from the disease, or when the disease is a contributing factor for the admission.
Respiratory Syncytial Virus
Summary of laboratory-confirmed RSV cases in Alberta, 2021-2022 to 2025-2026
|
Season
|
Cases (n)
|
Hospitalizations (n)
|
ICU admissions (n)
|
Deaths (n)
|
|
2025-2026
|
4,180
|
1538
|
137
|
40
|
|
2024-2025
|
5,782
|
2396
|
217
|
73
|
|
2023-2024
|
5,048
|
No data
|
No data
|
No data
|
|
2022-2023
|
6,943
|
No data
|
No data
|
No data
|
|
2021-2022
|
4,411
|
No data
|
No data
|
No data
|
Note: A hospital or ICU admission in a laboratory-confirmed RSV case is counted when the reason for admission is either directly resulting from the disease, or when the disease is a contributing factor for the admission.
COVID-19
Summary of laboratory-confirmed COVID-19 cases in Alberta, 2021-2022 to 2025-2026
|
Season
|
Cases (n)
|
Hospitalizations (n)
|
ICU admissions (n)
|
Deaths (n)
|
|
2025-2026
|
5,652
|
1,314
|
89
|
114
|
|
2024-2025
|
12,413
|
3,375
|
210
|
411
|
|
2023-2024
|
23,920
|
6,083
|
380
|
751
|
|
2022-2023
|
32,815
|
5,923
|
463
|
974
|
|
2021-2022
|
349,972
|
15,500
|
2,000
|
2,409
|
Note: A hospital or ICU admission in a laboratory-confirmed COVID-19 case is counted when the reason for admission is either directly resulting from the disease, or when the disease is a contributing factor for the admission. Information on reason for hospitalization was unavailable prior to 2022-02-01. Data before and after that reporting change date are not directly comparable.