Pfizer Inc said on Monday its experimental vaccine was more than 90% effective in preventing COVID-19 based on initial data from a large study, a major victory in the fight against the pandemic.
Pfizer and German partner BioNTech SE are the first drugmakers to show successful data from a large-scale clinical trial of a coronavirus vaccine.
Following are reactions to the news.
WALID GELLAD, PROFESSOR OF MEDICINE, UNIVERSITY OF PITTSBURGH, UNITED STATES
"This is a hint that these mRNA vaccines are likely to work, and there's.