COVID-19 vaccine

The vaccines now in use are based on the form of the virus that circulated at the beginning of the pandemic and are less effective against the omicron variant. New options are in the works.

Though findings are preliminary, many studies suggest that vaccinated people have good protection against the condition, although just how much is still up for debate.

If approved, this would be the second booster shot Moderna has issued for people ages 18 and up.

"We believe additional information regarding the ongoing evaluation of a third dose should be considered as part of our decision-making for potential authorization," FDA officials said in a statement.

The Health Resources and Services Administration is distributing $66.5 million to community groups working across 38 states and Washington, D.C. to help with local vaccine outreach.

Iran has found a rare, if fleeting, respite from the anxiety and trauma of the pandemic.

A handful of fans waving the Serbian flag greeted Djokovic at the airport.

Military officials say that, after months of warnings, they have begun disciplinary actions. The Army has reprimanded 2,700 soldiers and said it will begin discharge proceedings in the new year.

Scientists are watching how Portugal and other highly vaccinated countries are faring against the coronavirus' new omicron variant.

Peruvian health officials face many obstacles as they try to get everyone vaccinated, including those who live in remote and rural areas.

A COVID-19 vaccine from a Canadian biotech firm has been found effective at preventing moderate to severe disease. It could soon become the first plant-based vaccine authorized for human use.