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Influenza Surveillance Data

Oregon Surveillance Data

Flu Bites

Magnifying glass being used to examine a colorful bar chartFlu Bites is Oregon's weekly influenza surveillance report, produced during influenza season, October-April. The final report for the 2019-2020 flu season was published on April 24, 2020.

View the current report (pdf)


Hospital Surveillance Data

Influenza-related hospitalizations in the Portland Tri-County area


Healthcare Worker Influenza Vaccination

Visit the HAI Publications page to find current and previous reports on healthcare worker vaccination rates for influenza.


Oregon ILI Surveillance Data  

2010-2011 Season
2009-2010 Season
2008-2009 Season

U.S. Surveillance Data


Global Surveillance Data


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