Like these substances, influenza viruses must also attach to molecules on the cell surface. The dynamics are like surfing on the surface of the cell: the virus scans the surface, attaching to a ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Footage obtained by Newsweek from a California veterinarian shows dead ...

Helen Branswell covers issues broadly related to infectious diseases, including outbreaks, preparedness, research, and vaccine development. Follow her on Mastodon and Bluesky. You can reach Helen on ...

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The stomach flu is an infection of the stomach or intestines, but influenza is an infection of the nose, throat, or lungs. Your symptoms can help you determine which one you have. The flu and stomach ...

The flu is straining hospitals and urgent cares across the United States, with the surge in infections driven by an aggressive new flu variant. Flu activity remains high in most parts of the country, ...

After a sharp uptick in flu cases in mid-December 2025, flu activity across the U.S. and Canada remains high. Although cases are trending downward in Canada as of Jan. 9, 2026, the season has yet to ...

Seasonal influenza causes substantial illness and death in adults 50 years of age or older, even with current vaccines. An investigational messenger RNA (mRNA)–based vaccine called mRNA-1010 encodes ...

For the first time, researchers have observed live and in high resolution how influenza viruses infect living cells. This was possible thanks to a new microscopy technique, which could now help to ...