Early flu exposure helps immunity against H5N1 infection, with older adults having stronger antibody responses.

Researchers from the University of Pennsylvania, USA, have found that previous exposure to certain seasonal influenza viruses ...

HHS is re-evaluating a nearly $600 million contract with Moderna to develop and test vaccines against flu viruses that could ...

Prior exposures to specific types of seasonal influenza viruses promote cross-reactive immunity against the H5N1 avian ...

New infections in animals should heighten concern of human H5N1.

Life science companies developing bird flu vaccines are gaining attention as the avian influenza subtype H5N1 becomes an ...

Older adults who were exposed to seasonal flu viruses that circulated prior to 1968 are more likely to have some protection ...

Bird flu, or H5N1 avian influenza, has been circulating across North America since 2022, infecting birds, livestock, wildlife ...

Pandemic influenza remains a significant global health threat, as signalled by the circulation and cross-species transmission of avian influenza A(H5N1) viruses from the clade 2.3.4.4b, including ...

Scientists are sounding alarms about a genetic mutation that was recently identified in four dairy cow herds, nearly one year ...

The spread of H5N1 bird flu has sickened dozens of Americans, resulted in a nationwide egg shortage and led to the deaths of ...