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: ...

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

Several viruses -- seasonal flu, stomach flu, COVID-19 and RSV -- are surging in the United States and are expected to spike ...

Previous seasonal flu infections and vaccinations may protect us against infection from the highly pathogenic H5N1 bird flu outbreak.

Stanford Medicine researchers have developed a new method for influenza vaccination that encourages a robust immune response ...

The risk of respiratory syncytial virus, or RSV, is on the rise, along with that of other illnesses including the flu, stomach flu and COVID-19.

Highly pathogenic avian influenza A(H5N1) viruses have caused widespread infections in dairy cows and poultry in the United ...

Holidays are upon us — and so is the flu. More Americans are getting infected with seasonal influenza and seeking care, according to Centers for Disease Control and Prevention data.

Most seasonal flu viruses are influenza type A, which usually start earlier in the season, with type B viruses circulating later in the winter. Currently, A viruses of H1N1 and H3N2 are ...

Bird flu, also called avian influenza, is a viral infection that can cause flu in birds and sometimes spread to mammals, including humans. Migrating waterfowl (wild ducks, geese, and storks ...

Highly pathogenic avian influenza A(H5N1) viruses are circulating among wild birds and poultry in British Columbia, Canada. 1 These viruses are also recognized to cause illness in humans.