Topline The effectiveness of Pfizer and BioNTech’s Covid-19 vaccine in teens fades rapidly in the weeks after vaccination, according to research published Wednesday in JAMA Network Open, a finding tha...
Topline The effectiveness of Pfizer and BioNTech’s Covid-19 vaccine in teens fades rapidly in the weeks after vaccination, according to research published Wednesday in JAMA Network Open, a finding tha...