Encouraging Breakthroughs Offer Hope for Controlling Virus

Emotional, Burning, Unlimited Tuned Laboratory

Preliminary data on Pfizer’s experimental shot suggest the most promising scientific advance so far in the battle against the coronavirus.

The race to secure a Covid-19 vaccine reached a key milestone, even as the pandemic regained strength in the U.S. and Europe.

An experimental shot being developed by Pfizer Inc. and BioNTech SE prevented more than 90% of infections in a study of tens of thousands of volunteers. The results pave the way for the companies to seek an emergency-use authorization from U.S. regulators if further research shows the shot is also safe.