Both influenza A and B infections typically manifest the same broad symptoms, although they can vary case by case. Only testing by a doctor can reveal which type a patient has contracted.

But what does it mean to have a flu A or flu B season? Do these types of flu have different symptoms? And does one cause more severe illness than the other? Experts have been studying influenza ...

You may have heard of H1N1 or H3N2 – those are the two dominant types of influenza A circulating right now, according to the CDC. “Influenza A typically causes worse symptoms compared to ...

Fluctuating weather patterns — with sudden shifts in temperature — are known to weaken the immune system, making people more ...

It may say spring on the calendar, but colds, flu and COVID are still making people ill. What you should know.

A series of reported outbreaks at some of the largest egg producers in the U.S. have caused a shortage in egg supplies, as ...

While we often refer to it as "the flu," the influenza virus has several strains. Here's what to know about the two most ...