The FDA is expected to announce within the next 48 hours that it is authorizing Covid-19 booster shots for some people who are immunocompromised. This would be a third shot of the current two-dose Pfizer and Moderna vaccines. The CDC will meet on Friday to discuss booster doses of Covid 19 vaccines and additional doses for some. About 9 million Americans are estimated to be immunocompromised, either because of diseases they have or medications they take; and a third of eligible people in the US have not received even one dose of a Covid-19 vaccine. The Biden administration is expected to lay out a booster strategy for all vaccinated Americans in September.
