To find the answer, they developed a way to observe and measure real-time influenza A virus structure during formation. The researchers found: Influenza A viruses rapidly adjust their shape when ...

The crystal structure of the hemagglutinin of both the viruses is similar, especially within the Sa antigenic site. Compared with seasonal influenza outbreaks, the overall impact of the 2009 H1N1 ...

Aa Aa Aa Although most healthy adults who contract the flu experience relatively minor symptoms, influenza and other respiratory viruses are a serious health threat to the U.S. population at large.

The H5N1 avian influenza virus is mutating to evade immune defenses in mammals following prior infection or vaccination.