test and trace

名词 n.

英文释义

名词 n.
  1. A means of combating coronavirus by taking samples from individuals and instructing those who are infected to isolate themselves from others and provide details of their recent close contacts, who are also told to isolate. neologism,uncountable
    — This is the world of “test and trace.” In the past month [i.e., since early March 2020], the coronavirus pandemic has necessitated a deep freeze of US activity.
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