Contact Tracing

What is Contact Tracing?

Contact tracing is a well-established tool for combatting the spread of serious communicable diseases, such as measles and tuberculosis. It gives the Health Department a chance to get ahead of the spread, protect people who might have been exposed and stop COVID-19 in its tracks. For each person we contact, we check symptoms, offer testing and recommend avoiding close contact with other people until it’s safe to do so.

Answering the Call

Contra Costa Health Services is using contact tracing to protect you and others who might have unknowingly been exposed to COVID-19. It is a smart way to make sure you and others who might have been exposed get free testing and, if necessary, appropriate medical care. By reaching out to those that might have been in contact with someone with COVID-19, we can stay ahead of this dangerous virus. 


Protecting Your Privacy

Contact tracing is an anonymous way to do your part to fight the spread of COVID-19. All information is confidential. We do not share information about who provided information to anyone. No information about your immigration status or any other personal information is collected or shared.


For more information about contact tracing efforts in the state, visit

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