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

The detection of bird flu in a sheep is another sign that the H5N1 virus is adapting to hop to new hosts ...

Recent viral mutations have shown avian influenza’s adaptability to mammalian hosts, prompting infectious disease, animal ...

13, 2025 — Older adults who were exposed to seasonal flu viruses that circulated ... sensor that detects a type of influenza ... Immunity Against Seasonal H1N1 Flu Reduces Bird Flu Severity ...

Though hospitalizations and other markers trended lower, the CDC received reports of 17 more pediatric flu deaths.

Swine flu is caused by a virus, which affects pigs. It is highly contagious and spreads through air and solid surfaces.

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

Older adults who were exposed to seasonal flu viruses that circulated prior to 1968 are more likely to have some protection against H5N1, and children would benefit more from H5N1 vaccines.

This protection is based on shared traits between bird flu and types of seasonal flu that ... Antibodies directed against the stalks of H1N1 viruses can cross-react with H5N1, likely indicating ...

Symptoms of Influenza B and H1N1 (swine flu) viruses Symptoms of Influenza B and ... or people with any type of systematic diseases, e.g. diabetes, renal or chronic lung diseases, are at high ...