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

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

The recommendations were made following a meeting that included experts from the FDA, the Centers for Disease Control and Prevention, and the Department of Defense.

To maintain vaccine efficacy, WHO regularly updates influenza vaccine strains based on global epidemiological, virological, ...

Not long after the first flu shot was introduced in 1945 by University of Michigan virologist Thomas Francis and his ...

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

called T follicular helper cells, indirectly controls the anti-influenza response. ... Aug. 19, 2024 — The avian influenza virus needs to mutate to cross the species barrier and to infect and ...

Previous exposures to older flu strains prime the immune system to produce antibodies against bird flu (H5N1).

Highly pathogenic avian influenza (HPAI) readily infected cells from milk-producing organs in dairy cows, but beef cells held ...