We may have been successful in containing the pandemic caused by COVID-19, but the disease still lingers. This infectious disease is still very dangerous, and sometimes even fatal, especially for ...

Helen Branswell covers issues broadly related to infectious diseases, including outbreaks, preparedness, research, and vaccine development. Follow her on Mastodon and ...

On Monday, the U.K. became the first country to approve a bivalent vaccine booster shot for adults, which would target both the original COVID virus and the Omicron variant. This vaccine, which is ...

WASHINGTON -- Moderna submitted its application to the U.S. Food and Drug Administration for emergency use authorization of its updated COVID-19 vaccine booster for use in people age 18 and older, the ...

With the Delta variant in play, federal health officials are analyzing the latest numbers to look at the frequency and seriousness of COVID-19 breakthrough infections. Will we need booster shots? And ...

WASHINGTON -- People with certain health conditions that make them moderately or severely immunocompromised may get a fourth mRNA COVID-19 shot, according to updated guidelines from the US Centers for ...

Both candidates combine 2 already licensed vaccines to prevent influenza and COVID-19. Fast Track designation was granted with the aim of addressing the significant individual and health system ...