CDC says waiting longer between Pfizer, Moderna doses may reduce rare myocarditis risk for younger men : Rashtra News #CDC #waiting #longer #Pfizer #Moderna #doses #reduce #rare #myocarditis #risk #younger #men A healthcare worker prepares a dose of the Pfizer-BioNTech Covid-19 vaccine at a vaccination clinic in the Peabody Institute Library in Peabody, Massachusetts, on