Historical Data
Influenza
Summary of laboratory-confirmed seasonal influenza cases in Alberta, 2020-2021 to 2024-2025
Season
|
Cases (n)
|
Influenza A cases (n)
|
Influenza B cases (n)
|
Hospitalizations (n)
|
ICU admissions (n)
|
Deaths (n)
|
2024-2025
|
5,465
|
5,264
|
201
|
1,298
|
101
|
59
|
2023-2024
|
16,229
|
11,877
|
4,352
|
3,348
|
364
|
180
|
2022-2023
|
9,783
|
9,069
|
714
|
2,188
|
222
|
123
|
2021-2022
|
2,907
|
2,904
|
3
|
529
|
54
|
19
|
2020-2021
|
0
|
0
|
0
|
0
|
0
|
0
|
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, 2020-2021 to 2024-2025
Season
|
Cases (n)
|
Hospitalizations (n)
|
ICU admissions (n)
|
Deaths (n)
|
2024-2025
|
4,393
|
1785
|
157
|
41
|
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
|
2020-2021
|
17
|
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, 2020-2021 to 2024-2025
Season
|
Cases (n)
|
Hospitalizations (n)
|
ICU admissions (n)
|
Deaths (n)
|
2024-2025
|
10,028
|
2,711
|
166
|
334
|
2023-2024
|
23,923
|
6,083
|
380
|
753
|
2022-2023
|
32,821
|
5,918
|
462
|
972
|
2021-2022
|
350,358
|
15,559
|
2,007
|
2,408
|
2020-2021
|
238,984
|
9,948
|
1,952
|
2,214
|
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.