Want to end state lockdowns? Send in the coronavirus detectives.


As a method known as contact tracing, in which disease detectives track and monitor the interactions and movements of known infected people, has been hailed as a success in countries like South Korea, the United States has begun to employ the technique as it considers reopening parts of the economy. Relying heavily on widespread testing, contact tracing is already being used in Massachusetts, where an organization called Partners for Health trained 300 volunteers as contact tracers.

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