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

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

Thankfully, the genetic analysis of virus from the human case in Texas showed only one change (PB2-E627K), which has been detected in other human and mammalian infections with H5N1, and no further ...

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.

the USDA reported finding that the D1.1 strain infecting cows in Nevada has a notable mutation known to help the bird-adapted virus replicate in mammals more efficiently (PB2 D701N). To date ...

The tests also identified some notable mutations. The Wyoming patient’s virus had the E627K mutation in the polymerase basic 2 (PB2) protein that has been linked to efficient replication in people and ...

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 ...

The outbreak caused substantial mortality among wild birds, poultry, and marine mammals and included one confirmed human case. A comprehensive surveillance effort was conducted, involving the ...