Why Herd Immunity against Covid19 won’t work in India
NBC News medical contributor Dr. John Torres joins TODAY’s Sheinelle Jones to discuss where we stand in terms of a coronavirus vaccine. He says three companies are in phase three of a vaccine trial and the earliest approvals might come…
Dr. Thomas Tsai, surgeon at Boston’s Brigham and Women’s Hospital, explains how herd immunity works, why Sweden tried it, and the concerns over other countries taking that approach. » Subscribe to NBC News: » Watch more NBC video: NBC News…