Pfizer, BioNTech plan regulatory filing as vaccine proves 95% effective

The companies said their vaccine protected people of all ages and ethnicities

Pfizer Inc. said a final analysis of clinical-trial data showed its Covid-19 vaccine was 95% effective, paving the way for the company to apply for the first U.S. regulatory authorization for a coronavirus shot within days.

The U.S. drugmaker and partner BioNTech SE said their vaccine protected people of all ages and ethnicities, with no significant safety problems so far in a trial that includes almost 44,000 participants.

The update is the latest in a string of promising developments on the vaccine front in recent days. Moderna Inc.’s rival jab appears equally effective, judging from data published earlier this week,