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Reports of COVID-19 Reinfections Raise Concerns Over Immunity

  • October 14, 2020

Reports of people coming down with COVID-19 twice, most recently a man in the U.S., are raising questions with scientists on immune responses to the virus and what the reinfections mean for the vaccines that are coming out for it. One important factor that could affect vaccine development is that the U.S. patient acquired two different strains of the virus — and the second bout was far worse than the first. "Our findings signal that a previous infection may not necessarily protect...