For now, wary US treads water with transformed COVID-19
FILE - A dose of a Pfizer COVID-19 vaccine is prepared at Lurie Children's hospital, Nov. 5, 2021, in Chicago. Some people getting Pfizer or Moderna COVID-19 vaccines should consider waiting up to eight weeks between the first and second doses, instead of the three or four weeks previously recommended, U.S. health officials said.,Tuesday, Feb. 22, 2022. (AP Photo/Nam Y. Huh, File)
Array
