PEI Weekly Influenza Summary 2018-2019 Season
- There was localized flu activity in PEI during Week 15.
- Our seasonal total is 269 lab-confirmed cases (213 A/pH1N1, 39 A/H3, and 17 A/unsubtyped).
- The median age of cases to date is 48 years; 52% of cases are female.
- Across Canada in week 14 (Mar. 31-Apr. 6), flu activity continued in most regions, with a second, smaller wave of mostly A(H3N2) being observed. Nationally, while detections of A/H3 have been increasing since mid-January, A/pH1N1 remains the predominant subtype to date this season.
Epidemiological curve of laboratory data
There was localized flu activity in PEI during Week 15. 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 2018-19 season
|Lab-confirmed cases||Current Week (15)||Cumulative 2018-2019|
Respiratory outbreaks, current week, and cumulative 2018-19 season
|Respiratory Outbreaks||Current Week (15)||Cumulative 2018-2019|
1 ILI: Influenza like illness
Severe outcome surveillance, current week, and cumulative 2018-19 season
|Severe Outcome||Current Week (15)||Cumulative 2018-2019|
1Hospitalization 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
- 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