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Influenza spreads readily from person to person in schools, workplaces and homes. Everyone 6 months of age and older should get an annual flu vaccine to prevent sickness, healthcare visits, hospitalizations, and deaths from influenza.

Protection lasts throughout the flu season, which usually peaks in January or February and continues into the spring. Some children and adults may be eligible to receive nasal spray flu vaccine.

People with egg allergy may also be eligible to receive flu vaccine. Talk with your healthcare provider or pharmacist about which flu vaccine is recommended for you.

Resources on flu

Influenza in King County

Purpose of surveillance:

  • To detect the emergence of novel influenza
  • To monitor influenza activity in the community
  • To identify clusters of severe illness and outbreaks of influenza in institutional settings
  • To monitor mortality from laboratory-confirmed influenza

More information:


Link/share our site at www.kingcounty.gov/influenza

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2018-2019 weekly flu surveillance reports

Weekly Influenza surveillance reports will resume early-mid October for the 2018-2019 season, corresponding with the weekly CDC surveillance publications. Please refer to the CDC page for more details regarding the 2018-2019 Influenza Season.

Download the King County 2017-2018 Flu Season Summary (PDF)