Seasonal influenza can result in severe morbidity and mortality. Year-round monitoring of influenza across Manitoba is performed by Epidemiology and Surveillance (E&S) in collaboration with Cadham Provincial Laboratory (CPL) through a variety of indicators. This report provides a weekly update on the provincial influenza activity during a season.
Data are reported with a one-week delay for increased data accuracy, completeness and reliability. More analyses may be conducted and will be added to this report when available. It is published online at approximately 3:00pm every Friday.
Data extracted up to 1:00 am on June 16, 2022
This is the last weekly report for this season. We'll continue to monitor influenza during summer.
|
||||||||
|
|
|
||||||
|
|
|||||||
|
|
|
||||||
Important Notes
|
Figure 1. Weekly Cases of Laboratory-Confirmed Influenza, Manitoba, 2018 – June 11, 2022
Figure 2. Age Distribution of Laboratory-Confirmed Influenza Cases, Manitoba, September 1, 2021 – June 11, 2022
Table 1. Cases of Influenza by Health Region, Manitoba, September 1, 2021 – June 11, 2022
Health Region | Total Influenza A | Total Influenza B | Influenza A this week | Influenza B this week |
---|---|---|---|---|
Winnipeg RHA | 100 | 0 | 1 | 0 |
Southern Health-Santé Sud | 24 | 0 | 0 | 0 |
Interlake-Eastern RHA | 50 | 0 | 0 | 0 |
Prairie Mountain Health | 19 | 0 | 0 | 0 |
Northern Health Region | 334 | 0 | 0 | 0 |
Table 2. Antiviral Resistance of Isolates by Influenza Type and Subtype, Manitoba, September 1, 2021 – June 9, 2022
Resistant | Susceptible | Resistant | Susceptible | |
---|---|---|---|---|
Canada | ||||
A (H3N2) | 0 | 139 | 0 | 139 |
A (H1N1) | 0 | 5 | 0 | 5 |
B | 0 | 0 | 0 | 0 |
Manitoba | ||||
A (H3N2) | 0 | 61 | 0 | 61 |
A (H1N1) | 0 | 1 | 0 | 1 |
B | 0 | 0 | 0 | 0 |
Table 3. Influenza Strain Characterization reported by National Microbiology Laboratory, Manitoba, September 1, 2021 – June 9, 2022
Canada | Manitoba | |
---|---|---|
A/Cambodia/e0826360/2020 (H3N2)-like | 151 | 63 |
A/Wisconsin/588/2019 (H1N1)-like | 5 | 1 |
B/Washington/02/2019-like | 0 | 0 |
B/Phuket/3073/2013-like | 0 | 0 |
Note: As per the World Health Organization (WHO), all seasonal quadrivalent influenza vaccines for 2021-2022 in the northern hemisphere contain those strains.
BackFigure 3. Weekly Respiratory and Influenza Outbreaks, Manitoba, 2018 – June 11, 2022
Note: COVID-19 outbreaks were not included.
Table 4. Age Distribution and Coverage of Vaccinations, Manitoba, September 1, 2021 – June 11, 2022
Age Group | Doses | Coverage Percentage |
---|---|---|
0-4 | 23,886 | 22.7% |
5-14 | 31,719 | 17.7% |
15-49 | 115,878 | 17.9% |
50-64 | 89,065 | 34.0% |
65+ | 146,179 | 62.5% |
All | 406,727 | 28.6% |
Figure 4. Weekly FluWatchers Participants and Percentage Reporting Fever and Cough, Manitoba, 2018 – June 11, 2022
Figure 5. Weekly Percentage of ILI Related Visits to Sentinel Physicians, Manitoba, 2018 – June 11, 2022
Figure 6. Weekly Units of Antiviral Dispensed from Pharmacies, Manitoba, 2018 – June 11, 2022
Figure 7. Weekly Respiratory Visits to Emergency Department, Winnipeg Regional Health Authority, Manitoba, 2018 – June 11, 2022
Epidemiology and Surveillance
Other Epidemiology and Surveillance reports
https://www.gov.mb.ca/health/publichealth/surveillance/index.html