The newer variant of avian influenza that recently infected dairy cattle in Nevada has a genetic change that’s thought to ...

The California duck farm's strain of H5N9 is different from those earlier cases because this time it is closely related to a newer variant of the H5N1 virus. That variant is called H5N1 D1.1, the USDA ...

Amidst growing fears of human-to-human transmission, “bird flu” is no longer just a grocery store problem — it’s exposing ...

It means that this virus can now replicate outside of the confines of the respiratory tract, get into other organs and cause ...

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

Flu A and flu B are two different strains of influenza, explains Thomas Russo, M.D., professor and chief of infectious ...

The researchers note that viral evolution of hemagglutinin can lead to resistance against vaccines and can sometimes lead to the virus jumping to other species more easily. They also caution that ...

A dairy worker in Nevada has contracted a new strain of the bird flu. Here's what we know about the D1.1 genotype bird flu ...

The influenza A virus genome consists of eight segments of single-stranded, negative-sense viral RNA, which encode multiple ...

two-digit year for viruses isolated during the 1900s); The subtype [16 possible hemagglutinin and 9 possible neuraminidase subtypes]. Thus, a type A virus isolated in 1995 in Memphis Tennessee ...