Quarantine Guidance

Updated January 2021

Quarantine Situations:

The State of Colorado has recently adopted CDC’s options for shortened quarantine, based on an analysis conducted by CDC scientists. CDPHE supports the use of these quarantine scenarios in schools:

  1. A 7-day quarantine period with a negative test conducted on day 5 or after
  2. A 10-day quarantine period
  3. A 14-day quarantine period (recommended by local public health, TCHD)
  • 14 Day Quarantine
    • Quarantine can end after day 14, WITHOUT testing unless ANY symptoms started.
      • If ANY symptoms begin during their 14 day quarantine, then a 10 day isolation will begin at symptom onset
  • 10 Day Quarantine:
    • Quarantine can end after day 10, WITHOUT testing if:
      • There have been NO symptoms reported during daily monitoring
      • They can return to school on day 11
      • They need to continue daily symptom monitoring through day 14
        • If ANY symptoms begin during the 14 day symptom monitoring, then a 10 day isolation will begin with symptom onset
      • This option appropriate for those without contact with high-risk individuals 
  • 7 Day Quarantine:
    • Quarantine can end after day 7 if:
      • They have had a negative COVID test on day 5 of their quarantine
      • There have been NO symptoms reported during daily monitoring
      • They can return on to school on day 8
      • They need to continue daily symptom monitoring through day 14
        • If ANY symptoms begin during the 14 day symptom monitoring, then a 10 day isolation will begin with symptom onset

Siblings and household contacts: 

  • The siblings and other household contacts of people with COVID-19 are considered close contacts (if they often live in the same house as the person who has COVID-19). 
    • Household member’s quarantine period begins on the last day of exposure to the person with COVID-19 during their 10-day isolation period. 
      • If close contact between the person with COVID-19 and household members continues throughout their isolation period, the duration of quarantine for household contacts will be 17 to 24 days, starting on day 10 of the isolation period for the person with COVID-19 (10-day isolation + additional quarantine period beginning on the last day of isolation). 
      • The siblings of people who are home for quarantine because they were exposed to COVID-19 do not need to stay home or be tested unless the sibling in quarantine develops symptoms or tests positive for COVID-19. Parents should closely monitor all of their children and themselves for symptoms. 
  • If household contacts want to end quarantine on day 17, they need to have a COVID test on or after day 15 of quarantine. If their test is negative and they remain asymptomatic, they can return on day 18 of quarantine. 

Teacher Guidelines:

Teachers wearing a KN95 or better and eye protection do not need to quarantine unless they were within 6 ft for 15 minutes of the sick person (or 12 ft for 15 minutes if the sick person was not wearing a mask.)