Two of the closest known relatives to SARS-CoV-2 — a pair of bat coronaviruses discovered by researchers in Laos — may transmit poorly in people despite being genetically similar to the ...

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 filaments ...

Influenza A viruses rapidly adjust their shape when placed in conditions that reduce infection efficiency, such as the presence of antiviral antibodies or host incompatibility. A virus' shape is ...

Flu cases are through the roof across the U.S. right now. And, while cold and flu season always packs a punch, it feels like this year has been especially bad. That's because a common strain of flu ...