Influenza (the flu) is a contagious respiratory illness caused by influenza viruses. It can lead to mild to severe illness, and in some cases, serious complications such as pneumonia, hospitalization, or even death. Each flu season is different, and the best protection is staying informed and taking steps to reduce your risk.
The flu spreads easily through coughs, sneezes, and close contact. Even healthy people can get very sick from the flu and spread it to others. Older adults, young children, and people with certain health conditions are especially vulnerable to severe illness.
Flu symptoms can come on suddenly and may include:
Some people may also experience vomiting and diarrhea, though this is more common in children.
The best way to prevent the flu is by getting a flu vaccine every year. Additional prevention steps include:
For the latest information about flu activity, prevention, and treatment, visit these trusted resources:
Stay protected this flu season—get vaccinated, practice good hygiene, and stay informed with reliable resources.