Very few humans have gone up against bird flu. But we've all dealt with seasonal flu for years. Some of our immune systems ...

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

Antibodies to the highly pathogenic H5N1 avian influenza virus were found in the blood of three veterinarians out of 150 who work with cattle and agreed to have their blood tested, reports the CDC.

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

Officials are urging pet owners not to feed their pets raw food or raw milk and to avoid letting them roam outside.

Prior exposures to specific types of seasonal influenza viruses promote cross-reactive immunity against the H5N1 avian influenza virus, according to new research from the Perelman School of Medicine ...

Potential protection from a rapidly changing virus H5N1 viruses have ... the stalk proteins of different influenza viruses, including H5N1. They found that blood samples from older adults born ...