FDA expected to authorize Covid-19 vaccine booster shots for some immunocompromised people within the next 48 hours

The US Food and Drug Administration is expected to announce within the next 48 hours that it is authorizing Covid-19 vaccine booster shots for some people who are immunocompromised, according to a source familiar with the discussions. This would be a third shot of the current two-dose Pfizer and Moderna vaccines. That announcement could slide, the source cautioned, but this is the current timing. 'The FDA is closely monitoring data as it becomes available from studies administering an additional dose of the authorized COVID-19 vaccines to immunocompromised individuals,' an FDA spokesperson told CNN. 'The agency, along with the CDC, is evaluating potential options on this issue, and will share information in the near future.'