We've all heard of "the flu" but when it comes to types, subtypes and variants, influenza can get a bit complicated.

In early December 2024, a group of researchers published an article in the journal Science, entitled “A single mutation in bovine influenza H5N1 hemagglutinin switches specificity to human receptors”.

The CDC is now calling for subtyping of influenza A viruses in all hospitalized patients -- and on an accelerated timeline, ideally within 24 hours. Nirav Shah, MD, JD, principal deputy director of ...

The CDC experts said overall the studies show that influenza A may infect mammals through nonrespiratory routes. Though ...

A San Francisco child was infected with H5N1 bird flu in December 2024, according to the CDC. The source is unknown. The case ...

Nearly half a year after the state's last detection of the virus, avian influenza has been found in a southern Minnesota turkey flock, according to animal health officials.

Maricopa County Department of Public health say they have detected "an influenza subtype associated with avian flu" in wastewater within the county. The A(H5) influenza subtype was found in wastewater ...

Scientists have pioneered an influenza virus vector-based nasal spray vaccine platform and developed a nasal spray H5N1 avian influenza vaccine. During the early COVID-19 pandemic, this platform ...

A strain of bird flu never seen before in the United States has been detected among poultry at a California farm. The virus, called highly pathogenic H5N9, is a type of avian influenza, otherwise ...