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Johnson & Johnson just announced the launch of a Phase 3 clinical trial for its COVID-19 vaccine candidate. But what does this step in the process really mean? We asked two experts whose job it is to test vaccines to help demystify the clinical trial process—step by step.
Roland Zahn, Ph.D., a Janssen scientist and expert in viral vaccines, was at the front lines of research during the Ebola outbreak. Today he and his team are working at record speed to help deliver a potential vaccine for the novel coronavirus.