FDA aims to give final approval to Pfizer vaccine early next month

President Biden said last week that he expected a fully approved vaccine in early fall. But the F.D.A.’s unofficial deadline is Labor Day or sooner, according to multiple people familiar with the plan. The agency said in a statement that its leaders recognized that approval might inspire more public confidence and had “taken an all-hands-on-deck approach” to the work.

Giving final approval to the Pfizer vaccine — rather than relying on the emergency authorization granted late last year by the F.D.A. — could help increase inoculation rates at a moment when the highly transmissible Delta variant of the virus is sharply driving up the number of new cases.

A number of universities and hospitals, the Defense Department and at least one major city, San Francisco, are expected to mandate inoculation once a vaccine is fully approved. Final approval could also help mute misinformation about the safety of vaccines and clarify legal issues about mandates.