Learn the Facts About Avian Flu (H5N1)

Flu vaccination recommendations are updated each year. See what's new for the 2023-2024 flu season.

You can still catch the flu in the summer months, thanks to a variety of factors.

Read about the impact of seasonal flu--and of vaccinations.

Certain people may have higher risk factors for influenza complications.

Dr. Rachel O'Mara, private physician, describes some of the experiences her patients have had with influenza.

Did you know? Influenza viruses are constantly mutating or changing. One way in which they change is referred to as antigenic drift.

Learn how flu symptoms compare to symptoms of other common illnesses.

How influenza led to pandemics, health crises, scientific discoveries, vaccine innovations and disease prevention.