U.S. firm to start final-stage trial of coronavirus vaccine

U.S. biotechnology company Moderna Inc. said Tuesday it will start a final-stage clinical trial of a potential coronavirus vaccine involving 30,000 participants on July 27.The development comes as the Massachusetts-based firm's experimental vaccine for COVID-19, the respiratory disease caused by the coronavirus, proved safe and provoked immune responses in all 45 participants in an early-stage test, which was reported in the New England Journal of Medicine.U.S. pharmaceutical giant Pfizer Inc. also said Monday it would start as soon as later this month a last-stage clinical trial of a possi…READ FULL ARTICLE