What to know
- As of February 28, 2025, the amount of acute respiratory illness causing people to seek healthcare is at a moderate level.
- Seasonal influenza activity remains elevated nationally but has decreased for two consecutive weeks.
- COVID-19 activity is declining nationally but elevated in some areas of the country.
- RSV activity is declining in most areas of the country.
Your community snapshot
- United States
The CDC may not have data for all states, counties, or territories. Read more »
What it is: A measure of how frequently a wide variety of respiratory symptoms and conditions are diagnosed by emergency department doctors, ranging from the common cold to COVID-19, flu, and RSV.
Why it matters: Summarizes the total impact of respiratory illnesses, regardless of which diseases are causing people to get sick.
* Overall respiratory illness activity is displayed at the state or territory level, local data is unavailable at this time.
What it is: A measure of how many people are seeking medical care in emergency departments.
Why it matters: When levels are high, it may indicate that infections are making people sick enough to require treatment.
* Emergency department data may cover an entire state or Health Service Area. Each Health Service Area includes one or more counties.
* Data is displayed at the state or territory level.
What it is: A measure of how much virus is present in sewage.
Why it matters: People with certain infections can shed pieces of viruses when using the bathroom, showering, or washing clothes — even if they don't have symptoms. Testing wastewater (sewage) helps us track infection levels in the community, including when people aren’t going to the doctor.
* Wastewater data is displayed at the state or territory level, local data is unavailable at this time.
† Flu levels are for Influenza A only, which includes avian influenza A(H5). Wastewater data cannot determine the source of viruses (from humans, animals, or animal products).
Season Outlook
The CDC has determined that the highest hospital demand for COVID-19, flu, and RSV to date this season occurred during the week ending February 1, 2025, and it was lower than the peak demand from last season. However, influenza activity remains high in most areas.
The peak hospital demand due to COVID-19 during this fall and winter respiratory season was lower than all previous seasons, and nearly 50% lower than the peak demand last season.
CDC does not anticipate producing additional respiratory disease outlook updates during the remainder of the 2024-2025 season. Read the entire 2024-2025 Respiratory Season Outlook - February Update (2/19/2025).
Protect yourself and your community
- Safeguard your health - Get the latest information from Vaccines.gov
- Order 4 free at-home COVID-19 tests today on COVIDTests.gov
- Explore resources and recommendations for older adults - Stay informed and protected
- Review tailored health recommendations for high-risk individuals
- Feeling ill? Take immediate steps to protect yourself and others – Start here
- Have symptoms? Consider wearing a mask
- Take action against germs – Practice good hygiene
- Got questions? Check out our FAQs
Continue exploring these data
Explore related data
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.
Data on COVID-19 cases and deaths among residents and staff of nursing homes are displayed at the national and state levels.