After a six-week delay, the US Food and Drug Administration has approved Novavax’s Covid-19 vaccine, according to a letter from the agency, but only for people 65 and older and those 12 and up who have at least one underlying condition that puts them at higher risk of severe illness.

Novavax can finally breathe a sigh of relief – at least a small one. The Food and Drug Administration approved the company's Covid-19 vaccine after more than a month of delay b

The notice came shortly after an advisory panel meeting at which members debated the pros and cons of asking manufacturers to update their vaccines.