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A new variant of COVID called XEC — a combination of two Omicron subvariants — is spreading in the middle of flu season.

This latest vaccine protects against both earlier strains, including the Omicron variant, and the newly spreading JN1 variant, which has made its way around the globe, including Israel.

"At the height of the Omicron wave, we still saw a lot of children being hospitalized," Jennifer Nayak, MD, associate ...

Updated COVID-19 vaccines targeting JN.1-lineage omicron variants of the coronavirus are now available in the U.S. for the fall and winter seasons. Here we answer common questions about the latest ...

The UK has become the first country in the world to authorise an updated COVID-19 booster vaccine directed at the Omicron variant, giving a green light to Moderna's mRNA-1273.214 shot.

The FDA already has cleared COVID-19 vaccines tweaked to better target omicron as boosters for everyone 5 and older. Pfizer's says its COVID-19 vaccine was 73% effective in protecting children ...