Influenza (Flu):
Flu is a contagious respiratory illness (like COVID-19 and RSV) caused by influenza viruses that infect the nose, throat, and lungs.
Vaccine Information
Getting vaccinated is your best defense against the flu. To find your nearest flu vaccination site visit vaccines.gov.
Symptoms and Treatment
The flu is a contagious illness that can spread quickly from one person to another. It can cause mild to severe illness, and at times can lead to death. Unlike a cold, flu symptoms start suddenly. They appear about 1 to 4 days after a person is exposed to the flu.
Symptoms of COVID-19 can be similar to flu symptoms. If you think you may have been exposed to someone with flu or COVID-19, talk with your health care provider and get tested.
