The cold season is in full swing, throats are scratchy and noses are running. We feel ill and hope it is not the flu. The ...

Influenza A virus (IAV) possesses a segmented, negative-sense RNA genome comprising eight distinct viral RNA (vRNA) segments. These segments form ribonucleoprotein (RNP) complexes that are selectively ...

A swine flu case in Spain with no pig exposure has raised questions about how the virus spread and triggered international health monitoring.

WASHINGTON (Reuters) - The H1N1 swine flu virus may have been new to humanity in many ways but in one key feature its closest relative was the 1918 pandemic virus, researchers reported on Wednesday.

May 21 -- THURSDAY, May 21 (HealthDay News) -- Some older people may have partial immunity to the new H1N1 swine flu virus because of possible exposure to another H1N1 flu strain circulating prior to ...

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 swine-flu virus continued its gradual global march on Tuesday, prompting countries to strengthen efforts to stem its spread, while President Barack Obama asked Congress for $1.5 billion in ...

BARCELONA, Feb 27 (Reuters) - Spain has informed the World Health Organization of a possible infection with the swine flu virus in its A(H1N1)v variant that may have been transmitted between humans, a ...