Vaccine manufacturers Pfizer and BioNTech have shown that its vaccine against the coronavirus disease (COVID-19) delivered an overall efficacy of 90.7 percent, an official from the Food and Drug Administration (FDA) said on Monday, Dec. 13.

READ MORE: https://mb.com.ph/2021/12/13/pfizer-biontech-covid-19-vaccine-shows-90-efficacy-for-kids-aged-5-to-11-fda/