Oscar-winning 'Jaws' actor Richard Dreyfuss was forced to cancel his appearance at SharkCon, due to his hospitalization with ...

At the surface, the immune response to a flu virus is simple. Some cells recognize the pathogen and send a signal to the ...

Although the avian flu (H5N1) virus may not be making the news as frequently, it is still working hard behind the scenes, ...

What to Know About the Flu Virus What’s the difference between influenza A and influenza B, and does it matter which you catch? Listen to this article · 5:26 min Learn more Share full article ...

New versions of the H5N1 virus are increasingly adept at spreading. Suggestions to either let it rip in poultry or vaccinate the birds could backfire.

Health authorities routinely test those pandemic vaccines against the bird flu virus to see if new strains have evolved to escape the protection from those shots.

Tiny genetic alterations could help the bird flu virus enter cells in the upper respiratory tract, the C.D.C. said. But there is no sign that mutations are widespread in nature.

The winter flu season features two types of influenza. Here's what you need to know about them and how they differ.

The mutations in the bird flu, or H5N1, viruses that caused severe infections in British Columbia and Louisiana both occurred in a protein on the surface of the virus that allows it to attach to ...

Public health officials have warned that new mutations of bird flu with human flu could have dangerous consequences.

Avian flu in milk The detection of avian flu virus fragments in milk is a new challenge for the dairy industry. Scientists do not have a full picture of the risks to humans but are learning.

The avian flu virus isolated from a hospitalized teenager in Vancouver has mutations in key areas that could help the virus spread more easily in humans, scientists say.