Health experts are reinforcing the point that full vaccination remains highly effective against severe illness and death caused by COVID-19 as federal regulators consider the possibility of ...

According to a study of more than 5.5 million adults aged 50 years or older, vaccination with the bivalent BA.1 mRNA booster ...

WASHINGTON -- With winter closing in and coronavirus case rates creeping up once again, White House chief medical adviser Dr. Anthony Fauci is warning that the vaccines' waning immunity combined with ...

Some people vaccinated against COVID-19 initially acquire strong levels of neutralizing antibodies but then experience rapid declines. Measuring immunoglobulin A antibody titers post-vaccination could ...

Just over half of the eligible population had the Covid-19 booster, with experts keen to see it given alongside the annual flu vaccine.