Tests conducted on 3,700 adolescents produced same results as adults

US pharmaceutical company said it conducted tests to ensure its effectiveness against emerging strai

But state-run Butantan research institute is withholding results of trials at request of Chinese dru

Gulf Arab state participated in late-stage clinical trial of vaccine developed by state-owned pharma

Gulf Arab state participated in late-stage clinical trial of vaccine developed by state-owned pharma

The news comes just a week after a joint effort by US-based Pfizer and German-based BioNTech announc

Company, German partner say more testing is needed