Pfizer vaccine vials contain excess doses, surprising hospitals and pharmacists

Pfizer's COVID-19 vaccine appears to be in slightly less short supply than originally thought.

Hospitals around the U.S. this week got their first vials of the vaccine, which was jointly developed by pharmaceutical giant Pfizer and Germany's BioNTech and is the first to be approved by the U.S. Food and Drug Administration. Many hospitals have quickly discovered that the vials they were told contained a maximum of five doses actually contain six or in some cases even seven doses.