https://www.mercurynews.com/2020/05/06/coronavirus-inside-the-bay-areas-growing-army-of-disease-detectives/

Wanted: People with a talent for telling terrible news to total strangers.

As the economy re-opens and people start venturing back out into the world, California’s counties are building an army of 20,000 “contact tracers” to find everyone who is unknowingly infected by the COVID-19 virus, preventing the ignition of deadly new clusters of disease.