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 ...

The U.S. is in peak flu season, as the CDC releases a map of influenza activity across the country. See which states are at ...

Influenza A virus particles strategically adapt their shape—to become either spheres or larger filaments—to favor their ability to infect cells depending on environmental conditions, according to a ...

The influenza A virus genome consists of eight segments of single-stranded, negative-sense viral RNA, which encode multiple ...

The flu virus is changing in ways never seen before, increasing infections and raising concerns about vaccine effectiveness and public health risks.

Influenza A Viruses Adapt Shape in Response to Environmental Pressures - NIH Study Identifies Previously Unknown Adaptation ...

Influenza A virus particles strategically adapt their shape—to become either spheres or larger filaments—to favor their ability to infect cells depending on environmental conditions, according to a ...