Pfizer announced on Monday that early analysis of the coronavirus vaccine it’s been developing with BioNTech suggests the vaccine was a success. A promising development considering the pandemic has killed roughly 1.3 million people around the world.
Pfizer said the vaccine was more than 90% effective in preventing the disease among volunteers who had no evidence of prior coronavirus infection. If the results hold up, that level of protection would put it on par with highly effective childhood vaccines for diseases such as measles. No serious safety concerns have been observed, the company said.