Betel leaf is a natural remedy with antiviral antibacterial and immune-boosting properties that help relieve colds sore ...

The H5N1 avian influenza virus is mutating to evade immune defenses in mammals following prior infection or vaccination.

Bird flu “is adapting to mammals, and it continues to show new tricks,” Nelson tells The Verge. The virus is spreading widely ...

Antibodies, which recognize viruses and proteins that the body has encountered before, have long gotten most of the credit ...