Scientists say a concerning genetic mutation has appeared in H5N1 bird flu infected cats living in a New Jersey suburb of New ...

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

Bird flu makes millions of copies of itself within ... the CDC said — and did not spark a major outbreak at that time. The change, on the PB2 gene linked to how the virus makes copies of itself ...

A genetic mutation of H5N1 detected in California dairy cows raises concerns about increased mammal-to-mammal transmission ...

Experts warn of concerns over U.S. bird flu outbreak as federal agencies struggle to rehire fired employees. Updates on mutations and response efforts here.

Scientists are sounding the alarm about a concerning genetic mutation of the H5N1 bird flu virus, recently identified in four ...

Yoshi Kawaoka: So in the past, there are avian influenza viruses that are in migratory waterfall [that] acquired mutations in PB2 proteins that make the virus replicate better in mammalian species.

Influenza A virus particles (virions ... polymerase subunit basic (PB)1, PB2 and polymerase subunit acidic (the viral polymerase complex). Each nucleocapsid protein-encapsidated RNA segment ...