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.
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Njira Lugogo, M.D., is a pulmonologist at the University of Michigan who is leading a clinical study of an investigational COVID-19 vaccine candidate. She helps answer common questions people may have about the process, from what people over 60 need to know to how participants are being kept safe during the pandemic.