PEI Weekly Influenza Summary 2017-2018 Season

Week 6 – Feb. 4 - Feb. 10, 2018

Summary

  • There was localized flu activity in PEI during Week 6.
  • Our seasonal total is 163 lab-confirmed cases (61 A/H3; 3 A/pH1N1; 4 A/unsubtyped; 95 B).
  • The median age of cases to date is 62 years.
  • Overall, influenza activity in Canada remains at peak levels but there are signs that activity is starting to slow down in parts of the country.


Epidemiological curve of laboratory data

There was localized flu activity in PEI during Week 6. Lab-confirmed influenza tests are just an indication of greater influenza activity as many individuals with influenza do not seek medical attention.

Graph of Lab-confirmed Influenza cases for 2017-2018 season

 

Positive influenza test results, current week and cumulative 2017-18 season
Lab-confirmed cases

Current Week (6)

Cumulative 2017-18
Influenza A 7 68
          A/pH1N1 0 3
          A/H3 5 61
          A/unsubtyped 2 4
Influenza B 12 95
Total Influenza 19 163

 

Respiratory outbreaks, current week and cumulative 2017-18 season
Respiratory Outbreaks Current Week (6) Cumulative 2017-18
Influenza A 0 2
          A/pH1N1 0 0
          A/H3 0 0
          A/unsubtyped 0 2
Influenza B 1 7
ILI1 0 1
Other Respiratory 0 0
Total Outbreaks 2 10

1 ILI:  Influenza like illness

 

Severe outcome surveillance, current week and cumulative 2017-18 season
Severe Outcome Current Week (6) Cumulative 2017-18
Hospitalizations1 4 53
ICU 0 2
Deaths2 0 3

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: 
  1. No activity: no lab-confirmed influenza detections in the reporting week, however, sporadically occurring ILI may be reported
  2. Sporadic: sporadically occurring ILI and lab-confirmed influenza detection(s) with no outbreaks detected within the influenza surveillance region
  3. Localized: evidence of increased ILI; lab-confirmed influenza detection(s); outbreaks in 1 county only
  4. 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 Influenza Summary 2016-17 Season

2015-16 Season Influenza Summary

PEI Influenza Summary 2014-2015 Season

 

Published date: 
February 14, 2018
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General Inquiries

Department of Health and Wellness
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105 Rochford Street
Charlottetown, PE   C1A 7N8

Phone: (902) 368-6414
Fax: (902) 368-4121

healthweb@gov.pe.ca