Increasing Seasonal Influenza A (H3N2) Activity, Especially Among Young Adults and in College and University Settings, During SARS-CoV-2 Co-Circulation

CDC Tracking Flu in Young Adults

Key facts about flu season, influenza viruses, how flu spreads, and information for specific high risk groups.

Increasing Flu Activity in Some States, Especially Among Young Adults

CDC Collaboration Improves Flu Vaccination Efforts in Latin America and the Caribbean

Ongoing global monitoring for respiratory viruses with pandemic potential has recently identified three new human infections with avian influenza A(H5N6) virus (or "A(H5N6) bird flu") in China.

CDC's first estimates for flu vaccine uptake among children and pregnant people so far this flu season are lower compared to the same time last season, which could be dangerous for many of the people in these groups who may be at higher risk of developing serious flu complications. Flu vaccine can be lifesaving in children, and flu vaccination helps protect pregnant people during and after pregnancy.

CDC today reported two new U.S. human infections with influenza viruses that usually spread in pigs and not people.

CDC 2021-2022 Flu Vaccination Campaign Kickoff

2020-2021 Influenza Season Vaccination Coverage Estimates

CDC Reports Eighth and Ninth U.S. Human Infections with a Variant Flu Virus for 2020-2021 Influenza Season

CDC Program Engages Partners to Promote Vaccine Equity Among Racial and Ethnic Minority Groups

Early flu antiviral treatment can shorten hospital stays in children with flu, new CDC study shows

Summary: 'Prevention and Control of Seasonal Influenza with Vaccines: Recommendations of the Advisory Committee on Immunization Practices (ACIP)-United States, 2021-22'

Frequently Asked Flu Questions: 2019-2020 Influenza Season

New Study Identifies Racial and Ethnic Disparities in Severe Flu Outcomes

CDC Reports Sixth and Seventh U.S. Human Infections with a Variant Flu Virus for 2020-2021 Influenza Season

CDC Study Finds Potential Enhanced Benefit of Recombinant Flu Vaccines

CDC Reports Fifth U.S. Human Infection with a Variant Flu Virus for 2021

Laboratory confirmed flu activity as reported by clinical laboratories is now low.