Posted in Web Johnson & Johnson Covid-19 vaccine enters Phase 3 trial in … January 31, 2021 The Johnson & Johnson vaccine trials are sponsored in part by the National Institute of Allergy and Infectious Diseases. Nation’s top doctors testify in Senate hearing on coronavirus response … https://www.nbcnews.com/health/health-news/johnson-johnson-begins-phase-3-covid-19-vaccine-trial-u-n1240446