Contra Costa county reports five new cases of COVID-19

This illustration, created at the Centers for Disease Control and Prevention (CDC), reveals ultrastructural morphology exhibited by coronaviruses. (Photo by Smith Collection/Gado/Getty Images)

Contra Costa County health services announced Sunday that five new cases of novel coronavirus (COVID-19) has been identified in the county.

Of the five, four are being treated at hospitals in Contra Costa County. None of the four have a travel history outside of the United States or known contact with a confirmed case.

The fifth patient contracted COVID-19 after being in close contact with another person who had previously tested positive. The fifth case is isolated at home.

In total, nine confirmed cases of coronavirus exist in Contra Costa County. Of the earlier four cases, one remains hospitalized, while the other three are isolated at home.