Respiratory Illnesses Data Channel

This site is updated on Fridays.

What to know

  • As of September 26, 2025, the amount of acute respiratory illness causing people to seek health care is at a very low level.
  • COVID-19 activity has peaked and is declining in many areas of the country, but emergency department visits and hospitalizations are elevated nationally.
  • Seasonal influenza activity and RSV activity is low.
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Your community snapshot

Weekly national summary

Season Outlook

CDC expects the upcoming fall and winter respiratory disease season in the United States will likely have a similar number of combined peak hospitalizations due to COVID-19, influenza, and RSV compared to last season. CDC will update this outlook every two months throughout the season and as warranted by changes in the trajectories of any of the three diseases. Read more: 2025-2026 Respiratory Disease Season Outlook

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Anticipated trends for COVID-19 infections, based on modeling, are displayed at the national and state levels.

Wastewater (sewage) data specific to SARS-CoV-2, the virus that causes COVID-19, are displayed at the national, regional, and state levels. These data can provide an early signal of changes in infection levels.

COVID-19 variants and genomic surveillance data are displayed for the nation.