- A COVID-19 pandemic is ongoing. Learn more about COVID-19.
A weekly influenza surveillance report prepared by the Influenza Division. All data are preliminary and may change as more reports are received.
This web page provides estimates of flu cases, medical visits and hospitalizations for the 2021-2022 season.
The Influenza Division at CDC has engaged with members of the scientific community on real-world influenza forecasting challenges known as FluSight.