5 reasons why FDA advisers did not recommend Covid-19 booster shots for everyone

(CNN) Vaccine advisers to the US Food and Drug Administration declined Friday to recommend the agency approve Covid-19 booster doses for everyone who got vaccinated six months ago or longer.

They did recommend a more limited step: emergency use authorization for people 65 and older, and for people at high risk of severe infection. Then they went back and added in health care workers and other people at high risk of getting infected at work — even if they are not at especially high risk of severe disease.