told Salon H5N1 and other avian influenza viruses are a type A influenza virus. "We do need subtype confirmation to make sure it's ‘H5,’ and sub-type testing is not widely accessible." ...

Influenza type B viruses are not classified by subtype and do not cause pandemics. Different strains of the flu virus mutate over time and replace the older strains. This is why it's important to ...

“Although the source of exposure to the virus in this case is currently unknown…H5N2 viruses have been ... infection caused by a novel influenza A virus subtype is an event that has the ...

The highly pathogenic avian influenza virus of the H5N1 subtype is presently among the top viruses of pandemic concern," the authors wrote in the paper. According to the CDC, 66 people across the ...

A subtype of bird flu caused by avian influenza A (H5) virus has been spreading worldwide in wild birds with a few outbreaks in poultry, dairy cows and other mammals across the United States, ...

A subtype of bird flu caused by avian influenza A (H5) virus has been spreading worldwide in wild birds with a few outbreaks in poultry, dairy cows and other mammals across the United States ...

H5N1 first human death was reported in USA. Since then, health authorities have been monitoring and cases and shave sounded ...

Influenza is high across the country, and Indiana is among the states affected. Here's what we know about how long flu lasts, medicines, shots and more.