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
|
20,164
|
14,638
|
5,526
|
4,327
|
327
|
282
|
|
2024-2025
|
14,706
|
13,270
|
1,436
|
3,734
|
313
|
237
|
|
2023-2024
|
16,227
|
11,875
|
4,352
|
3,358
|
364
|
171
|
|
2022-2023
|
9,782
|
9,069
|
713
|
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
|
5,081
|
1926
|
165
|
67
|
|
2024-2025
|
5,765
|
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
|
6,308
|
1,485
|
106
|
132
|
|
2024-2025
|
12,411
|
3,375
|
210
|
410
|
|
2023-2024
|
23,919
|
6,082
|
380
|
750
|
|
2022-2023
|
32,806
|
5,921
|
463
|
973
|
|
2021-2022
|
349,945
|
15,498
|
2,000
|
2,408
|
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.