influenza

Scientists track the evolution of influenza viruses because they mutate constantly and the seasonal flu vaccine has to be updated each year to keep up.

Spain will confine poultry indoors in several regions starting Monday in response to escalating cases of avian influenza across Europe, the agriculture ministry said Wednesday.

It added it also was affected by the spread of highly pathogenic avian influenza and pneumoviruses within the poultry industry.

The avian influenza virus known as H5N1 has threatened U.S. poultry farms since 2022, after migratory waterfowl carried a new strain of the virus into North and South America.

Cheese made from contaminated raw milk was found to contain infectious avian influenza virus, raising potential health concerns for consumers, according to new research.