As flu season ramps up in the U.S., influenza is not as simple as it first appears, with several different strains in play.

To round out the name, the viruses are given an H and N number to indicate a subtype. A full name might then look like this: ...

Host genetics play a significant role in shaping immune responses to different strains in the influenza vaccine, ...

Novel vaccine platform improved protection against diverse influenza subtypes when tested in animal models and human ...

The first severe case of H5N1 bird flu was confirmed in Louisiana. Here is a map of other states that have been affected.

First come the horseshoe crabs. Hoisting their round, tank-like shells, they trundle out of the Delaware Bay under the first ...

Northwest Naturals issued a recall of its Feline Turkey Recipe Raw Frozen Pet Food after it tested positive for bird flu.

The virus in the first severe human bird flu case in the U.S. was found to have mutated. Follow Newsweek's live blog for ...

Former President Bill Clinton, seen here at The New York Times Dealbook Summit 2024 on December 4, ... [+] 2024 in New York City, was hospitalized with the flu this week . (Photo by Eugene ...

Stitching together four molecules found in the standard flu vaccine ensures an immune response to all of them, scientists have shown.

The findings come at a time when outbreaks of bird flu -- a different subtype of the same influenza virus -- in dairy cattle have ... Study Shows Drop in Use of Antiviral Medications in Young ...