After Pfizer announced its coronavirus vaccine was more than 90% effective in preventing Covid-19 for those who had no evidence of previously being infected, CEO Albert Bourla said he believes the world “can see light at the end of the tunnel.”

After Pfizer announced its coronavirus vaccine was more than 90% effective in preventing Covid-19 for those who had no evidence of previously being infected, CEO Albert Bourla said he believes the world “can see light at the end of the tunnel.” https://t.co/3acYVdSGkV pic.twitter.com/7kCDOAlZIO

— CNBC (@CNBC) November 9, 2020