WASHINGTON, Nov. 9 (Xinhua) -- American drugmaker Pfizer and German pharmaceutical company BioNTech announced on Monday data analysis shows their COVID-19 vaccine candidate is more than 90 percent effective in preventing COVID-19 in participants without evidence of prior SARS-CoV-2 infection.
The results came from the first interim efficacy analysis conducted on Nov. 8 by an external, independent Data Monitoring Committee (DMC) from the Phase 3 clinical study of the vaccine BNT162b2, according to a statement of Pfizer.