Influenza surveillance in Alberta

Evidence of influenza in Alberta 2014–2015

Summary: Week 49, Nov 30 – Dec 6, 2014

Influenza activity continues to trend upward in Alberta. Activity has increased in North Zone, and continues to be high in Edmonton Zone and moderate in Calgary Zone. There were 8 outbreaks reported in week 49, the majority in long-term care facilities and supportive living sites. Influenza A(H3) is the predominant subtype to date.

South
  • Sporadic activity
  • Calgary
  • Localized activity
  • Central
  • Sporadic activity
  • Edmonton
  • Localized activity
  • North
  • Localized activity
  • Activity level definitions

    • No activity – No laboratory-confirmed influenza detections in the reporting week. However, sporadically occurring influenza-like illness (ILI) may be reported.
    • Sporadic – Sporadically occuring ILI and lab confirmed influenza detection(s) with no ILI/influenza outbreaks detected within the health zone.
    • Localized – Evidence of increased ILI and lab confirmed influenza detection(s) together with outbreaks in schools, hospitals, residential institutions and/or other types of facilities occurring in less than 50% of the health zone.
    • Widespread – Evidence of increased ILI and lab confirmed influenza detection(s) together with outbreaks in schools, hospitals, residential institutions and/or other types of facilities occurring in greater than or equal to 50% of the health zone.

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    2014–2015 reports

    2013–2014 reports

    Summary reports