A Weekly Influenza Activity Report*
National Flu Activity Map
A weekly influenza surveillance report prepared by the influenza division weekly influenza activity estimates reported by state and territorial epidemiologists.*
Reported Activity for Week Ending September 16, 2023
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Reported Activity for Week Ending September 9, 2023
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Reported Activity for Week Ending September 2, 2023
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Reported Activity for Week Ending August 26, 2023
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*This map indicates geographic spread and does not measure the severity of the influenza activity.
Source: US Centers for Disease Control and Prevention.
Influenza-Like Illness (ILI) Activity Level Indicator Determined by Data Reported to ILINet