Freezers required to store Covid-19 vaccines are in place at health systems that are preparing to administer the initial doses once the two leading candidates for shots receive a green light from regulators, U.S. health officials said Wednesday.
The federal government will have 40 million doses—enough to vaccinate 20 million—ready to distribute by the end of December should vaccines developed by Pfizer Inc. and its partner BioNTech SE, and Moderna Inc. receive emergency-use authorizations, said Moncef Slaoui, chief scientific adviser of the joint-effort led by the Department of Health and Human Services and Defense Department to expedite the development and ...