NIAID

Dr. Anthony Fauci, the top U.S. infectious disease expert, wears a face mask during the White House COVID-19 Response Team's regular call with the National Governors Association in the South Court Auditorium in the Eisenhower Executive Office Building on the White House Campus, Monday, Dec. 27, 2021, in Washington. (AP Photo/Carolyn Kaster)

Dr. Fauci recommends 4th COVID shot for those over the age of 50

It appears Dr. Anthony Fauci is back doing the media rounds, just in time to urge everyone over age 50 to get a fourth COVID vaccine dose.