New research from Northwestern University and the University of Wisconsin, however, is pointing to bacterial pneumonia as the cause of many severe COVID deaths.
On the cusp of respiratory virus season, experts offer their guidance to primary care physicians about how to advise patients about vaccines for COVID-19, influenza, and RSV.
The agency said that people at higher risk such as the immunocompromised and those over age 65 could choose to get a second booster shot before this fall.