Pfizer says COVID-19 vaccine safe, effective for adolescents in trial
By Julie SteenhuysenCHICAGO, March 31 (Reuters) - Pfizer and BioNTech's COVID-19 vaccine is safe, effective and produces robust antibody responses in 12-...
By Julie SteenhuysenCHICAGO, March 31 (Reuters) - Pfizer and BioNTech's COVID-19 vaccine is safe, effective and produces robust antibody responses in 12-...