http://www.sciencemag.org/news/2021/01/debates-intensify-over-dosing-plans-authorized-covid-19-vaccines

U.K. Prime Minister Boris Johnson watches a U.K. resident get one of the first doses of the AstraZeneca-Oxford COVID-19 vaccine since the nation authorized it for emergency use.

Science’s COVID-19 reporting is supported by the Pulitzer Center and the Heising-Simons Foundation.