COVID-19 booster shots were effective at preventing hospitalization and death before Omicron started spreading in the US. But protection from a third dose is essential now that Omicron cases are ...

Neutralizing antibody levels rose 37-fold one month after the booster was given. Moderna announced Monday that its COVID-19 vaccine booster increases antibody levels against the omicron variant within ...

Protection is high against severe disease, and is boosted by a third shot, per official UK stats. Protection against getting mildly ill is much lower, although a booster raises it. A new chart hows ...

The typical chest CT patterns seen in COVID-19 patients were far less frequent in individuals infected with Omicron and in the vaccinated, a retrospective multicenter study from France showed. In the ...