The first U.S. bird flu death has been announced - a person in Louisiana who had been hospitalized with severe respiratory symptoms.

India authorities step up monitoring after human metapneumovirus outbreak in China - China, Malaysia and Kazakhstan are among ...

For influenza viruses, imperfection is a strength. They constantly mutate, producing new strains that challenge immune ...

The US just recorded the first death from severe bird flu. Experts say it's not too early, or unreasonable, to prepare for ...

Related: What Do I Have: Cold or Flu? Some flu symptoms are similar to a cold, such as a cough or sore throat, but others ...