PEI Weekly Influenza Summary 2022-2023 Season
Week 16 - April 16 to April 22, 2023
COVID-19 Weekly Testing and Case Data
Summary
- There was no activity in PEI during Week 16.
- Our seasonal total is 358 lab-confirmed cases (111 A/H3, 1 A/H1N1, 242 A/unsubtyped, and 4 B).
- The median age of cases to date is 23 years; 57% of cases are female.
- Nationally in Weeks 14 - 15 (April 2 - April 15), influenza activity has increased slightly, but remains at levels usually seen in late spring/early summer with the increase being due to influenza B.
- This will be the last PEI Influenza Summary for the 2022-23 season.
Epidemiological curve of laboratory data
There was no activity in PEI during Week 16. Lab-confirmed influenza tests are just an indication of greater influenza activity, as many individuals with influenza do not seek medical attention.
Positive influenza test results, current week, and cumulative 2022-23 season
| Lab-confirmed cases | Current Week (16) | Cumulative 2022-2023 |
|---|---|---|
| Influenza A | 0 | 355 |
| A/H3 | 0 | 111 |
| A/H1N1 | 0 | 1 |
| A/Unsubtyped | 0 | 242 |
| Influenza B | 0 | 4 |
| Total Influenza | 0 | 359 |
Respiratory outbreaks, current week, and cumulative 2022-23 season
| Respiratory Outbreaks |
Current Week (16 |
Cumulative 2022-2023 |
|---|---|---|
| Influenza A | 0 | 7 |
| Influenza B | 0 | 0 |
| Influenza, Unknown Type | 0 | 0 |
| ILI1 | 0 | 21 |
| Total Outbreaks | 0 | 28 |
1 ILI: Influenza like illness; does not include COVID-19
Severe outcome surveillance, current week, and cumulative 2022-23 season
| Severe Outcome | Current Week (16) | Cumulative 2022-2023 |
|---|---|---|
| Hospitalizations1 | 0 | 80 |
| ICU | 0 | 6 |
| Deaths2 | 0 | 5 |
1 Hospitalization data is gathered through infection prevention and control practitioners at each Island hospital. Data includes ICU cases.
2 Deaths include individuals with a positive influenza test result. Influenza may not have been the major contributing cause of death.
Definitions (based on national Fluwatch definitions)
Activity levels:- No activity: no lab-confirmed influenza detections in the reporting week, however, sporadically occurring ILI may be reported
- Sporadic: sporadically occurring ILI and lab-confirmed influenza detection(s) with no outbreaks detected within the influenza surveillance region
- Localized: evidence of increased ILI; lab-confirmed influenza detection(s); outbreaks in 1 county only
- Widespread: evidence of increased ILI; lab-confirmed influenza detection(s); outbreaks in more than 1 county
Outbreaks:
- Hospitals and Residential institutions: 2 or more cases of ILI occurring within a 7 day period, with at least 1 lab- confirmed case
- Schools, Workplaces and other: absenteeism greater than 10% higher than expected which is most likely due to ILI
Links
Fluwatch - Public Health Agency of Canada
PEI Annual Influenza Summaries
Published date:
March 21, 2023