Is Contact Tracing Working in the U.S.?
Contact tracers, from left to right, Christella Uwera, Dishell Freeman and Alejandra Camarillo work at Harris County Public Health contact tracing facility Thursday, June 25, 2020, in Houston. Texas.
( AP Photo/David J. Phillip )
( AP Photo/David J. Phillip )
Produced by Meg Dalton
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