Contra Costa County Releases Quarantine Guidances May 15, 2020 General COVID-19, Public Health Contra Costa County Health Services (CCCHS) has released two new guidances related to quarantining. First, CCCHS released an updated mass quarantine order for individuals who have had close contact with a person with COVID-19. Anyone who has been in contact with (within 6' of) someone diagnosed with COVID-19 must self-quarantine for 14 days following the encounter - violation of this order is a misdemeanor. Second, CCCHS Health Officer Dr. Chris Farmitano issued orders extending the amount of time people diagnosed with COVID-19 must remain in isolation from 7 to 10 days.With those guidances in mind, along with extensive research regarding the risk of spread in large gatherings, Contra Costa County is urging schools to host virtual graduation ceremonies rather than in-person celebrations.