Influenza Surveillance Data

Oregon Surveillance Data

Flu Bites

Flu Bites is Oregon's weekly influenza surveillance report, produced during influenza season, October-April. The report for the 2024-2025 influenza season will be available beginning October 9th, 2024.

View the current report (pdf)

• Active: 2024-25 Season (pdf)
  
• Archive: 2023-24 Season (pdf)
  
• Archive: 2022-23 Season (pdf)
  
• Archive: 2021-22 Season (pdf)
  
• Archive: 2020-21 Season (pdf)
  
• Archive: 2019-20 Season (pdf)
  
• Archive: 2018-19 Season (pdf)
  
• Archive: 2017-18 Season (pdf)
  
• Archive: 2016-17 Season (pdf)
  
• Archive: 2015-16 Season (pdf)
• Archive: 2014-15 Season (pdf)
• Archive: 2013-14 Season (pdf)
• Archive: 2012-13 Season (pdf)
• Archive: 2011-12 Season (pdf)
• Archive: 2010-11 Season (pdf)
• Archive: 2009-10 Season (pdf)
• Archive: Summer 2009 (pdf)
• Archive: 2008-09 Season (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  

• Statewide ILI activity (pdf)
• Regional ILI activity (pdf)
• Season compared with last few seasons (pdf)

• Statewide ILI activity (pdf)  
• Regional ILI activity (pdf)
• Season compared with last few seasons (pdf)

• Statewide ILI activity (pdf)
• Regional ILI activity (pdf)
• Season compared with last few seasons (pdf)  

U.S. Surveillance Data

• Flu Near You
• CDC Weekly Influenza Report
• MMWR, Pneumonia and Influenza mortality by week for 122 U.S. Cities.
• California Department of Health Services
• Washington State Department of Health

• The DoD Worldwide Influenza Surveillance Program
  
• WHO FluNet
• Health Canada and Canada Flu Watch