COLD AND FLU

Do you know
the difference?
Do you know the difference?

National
Cold & Cough Activity Map

Click map to zoom in and explore regions, states and cities


FluSTAR data is gathered through several surveillance methods, including rapid assay data, laboratory confirmation and clinical diagnosis data. A resulting 12-point cold & flu severity index is further broken out into five levels, helping to paint a regional and national picture of influenza activity in the US. The map also provides breakouts for each condition on the national and local level and is updated regularly with season progress.

Where is cold & flu active today?

best cities

worst cities