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

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 ...

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

After a different strain of bird flu was recently found in cattle for the first time, experts reveal what this means in our fight against the virus.

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

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

A dairy worker in Nevada is the state’s first human case of bird flu after the employee was exposed to infected dairy cattle.

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 ...

U.S. approves conditional use of avian influenza vaccine amid spreading outbreak U.S. greenlights temporary use of bird flu ...

To test this idea, scientists studied the genetic sequences of a key element of the virus, hemagglutinin. This glycoprotein allows the pathogen to attach to host cells. Their analysis focused on ...

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

The “H” part codes for the virus’s hemagglutinin protein, which helps it infect cells, while its “N” segment codes for an enzyme called neuraminidase, which helps the virus break out of ...