Southern California recipients of a COVID-19 vaccine at a mass vaccination site in Disneyland’s parking lot in January. For strongest immunity, be sure to get both doses of the Pfizer or Moderna vaccine, says the CDC’s new head. She also…
Coronavirus CoverageIn this July 27, 2020, file photo, nurse Kathe Olmstead prepares a shot that is part of a possible COVID-19 vaccine, developed by the National Institutes of Health and Moderna Inc., in Binghamton, N. Y. (Hans Pennink/AP File)Although approval…