EditorialVials of a COVID-19 vaccine, developed by the Beijing drugmaker Sinovac, at the Butantan Institute in Sao Paulo on Feb. 11, 2021. (Victor Moriyama/The New York Times)
EditorialPalestinian Laboratory Medicine Specialist, tests vials of samples for coronavirus at Medical Laboratory, Gaza city, Gaza Strip, Palestinian Territory - 27 Nov 2021
EditorialA worker organizes vials of AstraZeneca's Covid-19 vaccine at a Serum Institute of India facility in Pune, India, Sept. 22, 2021. (Karan Deep Singh/The New York Times)
EditorialSix vials of the Pfizer COVID-19 vaccine at a federally-operated mass vaccination site in Newark, N.J., June 19, 2021. (Bryan Anselm/The New York Times)
EditorialVials of the Pfizer-BioNTech COVID-19 vaccine are readied for inoculations at the University of Iowa Hospital in Iowa City, Iowa, Dec. 14, 2020. (Kathryn Gamble/The New York Times)