Scientists Uncover Evidence That a Level of Pre-Existing COVID-19 / SARS-CoV-2 Immunity Is Present in the General Population

TOPICS:COVID-19Duke-NUS Medical SchoolImmunologyInfectious DiseasesVirology

By DUKE-NUS MEDICAL SCHOOL, JULY 25, 2020.

  • Singapore study shows that SARS-CoV-2-specific T cells are present in all recovered COVID-19 patients.
  • These T cells were also found in all subjects who recovered from SARS 17 years ago, and in over 50% of both SARS-CoV-1 and SARS-CoV-2 uninfected individuals tested, suggesting that a level of pre-existing SARS-CoV-2 immunity is present in the general population.
  • Infection and exposure to coronaviruses induces long-lasting memory T cells, which could help in the management of the current pandemic.

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