contact tracing

LA city, county in partnership with mobile app for COVID-19 contact tracing
Los Angeles city and county are partnering with the Citizen mobile app to provide new methods for faster coronavirus contact tracing and notifications about possible exposure.
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Don't avoid a call from COVID-19 contact tracers, officials say
Dr. Muntu Davis: LA County's health officer details COVID-19 battle
OC community members train for COVID contact tracing
Why is OC seeing big surge in coronavirus?
LA's rise in COVID-19 cases due in part to July 4, officials say
Was a COVID-19 tracking app secretly added to your phone?
More Videos
From CNN Newsource affiliates