2021/07/09 10:13
A health worker prepares to administer a jab of the AstraZeneca COVID-19 vaccine during a vaccination drive for people ages 30 to 39 in Mexico City, W...
A health worker prepares to administer a jab of the AstraZeneca COVID-19 vaccine during a vaccination drive for people ages 30 to 39 in Mexico City, Wednesday, July 7, 2021. (AP Photo/Marco Ugarte)
In this March 2021 photo provided by Pfizer, vials of the Pfizer-BioNTech COVID-19 vaccine are prepared for packaging at the company’s facility in Puu...
In this March 2021 photo provided by Pfizer, vials of the Pfizer-BioNTech COVID-19 vaccine are prepared for packaging at the company’s facility in Puurs, Belgium. Pfizer is about to seek U.S. authorization for a third dose of its COVID-19 vaccine, saying Thursday, July 8, 2021, that another shot within 12 months could dramatically boost immunity and maybe help ward off the latest worrisome coronavirus mutant. (Pfizer via AP)