What is contact tracing?

Photo by Jason Redmond / AFP via Getty Images During an infectious disease outbreak, one of the best tools public health experts have is old-school detective work: finding each sick person and then figuring out who they recently interacted with. The technique, called contact tracing, helps get outbreaks of diseases like COVID-19 under control.Contract tracing is based on an obvious idea: People in close contact with someone who has COVID-19 are at risk of getting sick
In order to lift social di