Health and Human Services Secretary Alex Azar announced on Wednesday that the US has signed a contract with Pfizer for delivery in December of the first 100 million doses of a COVID-19 vaccine the pharmaceutical company is working to develop. The US could buy another 500 million doses under the agreement, Azar said.
Pfizer Inc. And BioNTech SE announced separately that the agreement is with HHS and the Defense Department for a vaccine candidate the companies are developing jointly.