The US just hit a record high of about 4.6 million doses of COVID-19 vaccines reported administered in one day, according to data published Saturday by the Centers for Disease Control and Prevention.

Nearly 40% of US Marines are declining Covid-19 vaccinations, according to data provided to CNN on Friday by the service, the first branch to disclose service-wide numbers on acceptance and declination.

With millions of Americans being vaccinated against COVID-19 every day, a heated debate is underway -- do these people need proof of immunization in the form of a vaccine passport?

He said he'd take the Covid-19 vaccine first, as a role model for the rest of Argentina. A little over two months after receiving the Russian-made Sputnik V, Argentinian President Alberto Fernández has tested positive for the coronavirus.

The world can rest a little bit easier: Dolly Parton has gotten her second dose of the COVID-19 vaccine.

When the coronavirus pandemic began, the challenge for Pfizer and BioNTech wasn't just developing a COVID-19 vaccine -- they also had to make it, and by the hundreds of millions.

Roughly 15 million Johnson & Johnson coronavirus vaccines have been ruined after a factory mix-up in Baltimore, according to a report from The New York Times.

Under real world conditions, the Pfizer and Moderna COVID-19 vaccines provide highly effective protection, according to a new report from the US Centers for Disease Control and Prevention.

Drug giant AstraZeneca updated its data on how well its coronavirus vaccine works, saying late Wednesday the vaccine showed 76% efficacy against symptomatic coronavirus disease and 100% efficacy against severe or critical disease or the need for hospitalization.

As vaccine eligibility expands across the United States, more companies are offering incentives to get a jab.