H5N1 is a subtype of the influenza A virus, primarily known for causing highly pathogenic avian influenza, commonly referred to as bird flu. This virus primarily affects birds, particularly domesticated poultry, but it can also infect humans and other animals. H5N1 is characterized by its potential to cause severe respiratory illness in humans, with a high mortality rate compared to other influenza viruses. The virus is transmitted through direct contact with infected birds, contaminated environments, or, in some cases, through airborne particles. Since its emergence in the late 1990s, H5N1 has raised concerns regarding its ability to mutate and potentially lead to a pandemic if it adapts to spread efficiently among humans. Public health responses to H5N1 include monitoring, vaccination of poultry, and preparation for potential outbreaks.
New Jersey cats reveal H5N1 bird flu mutation, sparking virology concerns. Mutation PB2 E627K linked to increased infectiousness and severity in mammals. 51 feline infections reported across the U.S. since…
The ongoing saga of the H5N1 avian influenza virus continues to unfold, with recent developments raising significant concerns. While it has long been known for its impact on bird populations,…