The matrix (M1) protein is associated with both ribonucleoprotein and the viral envelope. A small amount of non-structural protein 2 is also present, but its location within the virion is unknown.

The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years. One indicator of flu activity is the percentage of doctor’s office visits driven by flu-like ...

Unfortunately, those predictions are proved wrong about one time out of 20, explained Sarah Gilbert, who leads the Human Influenza Vaccine Programme at the University of Oxford’s Jenner Institute.

The flu is surging around Massachusetts. Activity for the virus is designated as “very high” across the state, which is seeing the highest level of the illness since before the COVID-19 ...

Colorized transmission electron micrograph of influenza A/H3N2 virus particles, isolated from a patient sample and then propagated in cell culture. Influenza A virus particles adapt shape—as ...

OLYMPIA, Wash. — The Washington State Department of Agriculture (WSDA) has issued a warning to pet owners after at least two ...