Pfizer

The operator of the pop-up COVID vaccination site in the former "NFL Experience" building in Times Square sent out an emergency notice informing 899 patients that it erroneously injected them with expired Pfizer doses.

Hawaiian health officials said Monday that a fully vaccinated resident who traveled to Nevada last month has since tested positive for the Delta coronavirus variant.

The British government fended off calls Tuesday to provide more financial support to businesses and workers who will suffer from its decision to delay the...

The lack of any precooked deals between President Biden and Russian President Putin means not much of substance will be accomplished. Biden will be judged on the appearance of whether he got tough with the Russian leader who he once said he no soul.

Vaccine maker Novavax said Monday its COVID-19 shot was highly effective against the disease and also protected against variants in a large study in the U.S. and Mexico, potentially offering

The COVID-19 vaccine produced by Novavax showed an overall efficacy of 90% in a late-stage clinical trial, meaning the shot appears roughly as protective as those made by Pfizer-BioNTech and Moderna.

Anti-vaccine fervor spread more widely during the pandemic as the U.S. government urged people to get vaccinated as soon as possible.

The protein-based jab also proved to be 100 percent effective in preventing moderate and severe disease.

Our final edition of the Solving COVID newsletter

The United States is planning to send 1.35 million doses of the Johnson & Johnson vaccine to Mexico on Tuesday morning, according to a White House official.

People who have received an organ transplant may need a booster dose of the COVID-19 vaccine, a small study published Monday by the journal Annals of Internal Medicine found.

In a press briefing, Boris Johnson voiced his confidence that he won't need to delay the plan to lift restrictions on social contact further, as millions more people get fully vaccinated against the virus.

There's a better way to frame their options.

Lebanon has vaccinated a daily record of people against COVID-19, raising the total number of shots administered around the country against the virus to more...

The trial results put the Novaxax vaccine in the same efficacy ballpark as the mRNA vaccines produced by Pfizer-BioNTech and Moderna.

The increased availability of the covid-19 vaccine – and the myriad options for where one can receive it – has hampered efforts to track just how many people are skipping their second dose, which experts say is crucial to having the highest immunity possible against covid-19. Data from UPMC and

The news about a potential link between the Covid-19 vaccine and a cardiac ailment in young people may be striking fear in the hearts of some parents.

MILAN (Reuters) -Countries should avoid giving the AstraZeneca coronavirus vaccine to people over 60 in addition to younger age groups, the head of the EU...

FRANKFURT (Reuters) -Germany's health ministry said Johnson & Johnson must deliver 6.5 million COVID-19 vaccine doses to Germany in July to make up for a...

World leaders are gathering in the UK for the final day of the G7 summit. Follow here for the latest.