The flu shot works by introducing your body to antigens, which helps your immune system produce antibodies that allow your body to fight infection.

Flu, COVID-19, the common cold and RSV have similarities, but they differ in their severity, contagiousness and symptoms.

After a rough, record-setting flu season, doctors and health officials are bracing for another wave of fever, misery and ...

In the US, the flu season starts in October and can go until early spring, with cases peaking in February.

As flu season nears, experts emphasize the immune system's vital role in combating illness. A strong immune response reduces ...

Flu is a respiratory virus that causes fever, fatigue, body aches, headache and cough. While some people can fight it off at ...

As we enter the beginning of flu season, October is a great time to get your shot, experts agree. After you receive the flu ...

As flu season nears, experts encourage people to get their annual flu vaccine. Here's the best time to get the flu shot, how long it lasts, side effects and more.

When scientists engineer a better way to fight the flu, they often begin with nature’s own defenses. That’s what a new study from researchers at The Ohio State University set out to do. Their goal was ...

While it wasn't clear whether Keaton had any underlying conditions, doctors say "perfectly healthy" people can die from ...

With flu season right around the corner, now’s the best time to receive the flu vaccine, experts say. “The flu vaccine is one of the most important things that people can do to protect themselves as ...