Highly pathogenic avian influenza A(H5N1) viruses have caused widespread infections in dairy cows and poultry in the United ...

Most human cases of bird flu in North America have been mild, a fact that’s underscored by a new study of the first 46 ...

As for testing, the girl's first swab at BC Children's was positive for influenza A but negative for H1 or H3 disease.

So far, the H5N1 virus isn't transmitted between people — but the CDC has found a mutation in a human case "concerning." ...

With soaring inflation and the ruble dropping to one of its lowest levels against the dollar since President Vladimir Putin ...

Medical experts are warning about a spike in norovirus cases. NBC News' Shaquille Brewster reports more details. Dr. Nahid ...

In his New Year address, Putin vowed that Russia will move forward, focusing on progress despite facing challenges on the ...

Genetic analysis of H5N1 bird flu virus that infected a Canadian teenager shows 'worrisome' mutations, new studies reveal.

All year, I’ve been keeping tabs on the H5N1 avian flu outbreak in dairy cattle and birds in the United States. As a ...

Widyawati explained that influenza type A variant H5N1 had occurred in Indonesia in 2005-2017 ... Ukraine Urges China to ...

The death of an Oregon house cat and a pet food recall are raising questions about the ongoing outbreak of bird flu and how ...

A virologist explains that why this probably isn’t the big one — but that it’s a sign of bad things happening with the virus.