Most covid-19 cases are caused by a particular type of variants, but do we need to worry every time a new one emerges?

From Stratus to Cicada, several variants are on the radar as COVID-19 activity rises, impacting how the virus spreads, its ...

The latest data on respiratory illness in the United States shows that shoppers and merry-makers are spreading more than just holiday cheer: They’re also passing around germs. In many cases, it’s a ...

The U.S. Centers for Disease Control and Prevention (CDC) reported that the KP.3.1.1 COVID-19 variant is now the most common strain in the United States, but a spokesperson added that there is no ...

As the spread of infectious diseases accelerates, technologies that can accurately distinguish multiple viruses in a single test are becoming increasingly important. KAIST and an international ...

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This video created with the assistance of AI. New data shows COVID-19 is circulating at the highest level of the year for much of the Bay Area, and experts warn a surge could be coming with the start ...

Add Yahoo as a preferred source to see more of our stories on Google. Colorized scanning electron micrograph of a cell (green) infected with the omicron strain of SARS-CoV-2 virus particles (orange), ...