COVID-19 Vaccine: WHO OK's AstraZeneca Vaccine for Emergency Use

By the Editors

The World Health Organization gave Oxford-AstraZeneca's COVID-19 vaccine an emergency use listing, meaning it can be administered through its COVID-19 Vaccines Global Access (COVAX) program.

The viral-vectored vaccine, known as ChAdOx1-S, has a 63% efficacy and has less stringent storage requirements than some of the authorized mRNA vaccines. The WHO's Strategic Advisory Group of Experts on Immunization recently recommended this two-dose vaccine for people ages 18 and up.