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Information for Schools and Childcare

Información para escuelas y atención infantil

Last updated 9/23/2022

We understand that many families, students and staff have concerns about being in the classroom during a pandemic. The truth is that some students and staff will get sick, but they face this risk outside school as well. Children are much more likely to get COVID-19 from an adult at home than at school.


In general, research has shown children are less likely to get infected with COVID-19. They are also much less likely to become seriously ill if they do get infected. Health guidelines for masking, testing and ventilation are making classrooms safer. Click here to read the State's K-12 guidance for the 2022-2023 school year.


Isolation and Quarantine for K-12 Settings

Haga clic para Lineamientos de Aislamiento y Cuarentena para Grados K-12


For Students


If the child doesn't have symptoms or symptoms are improving after they test positive, they can return to school if a test taken on or after day 5 of isolation is negative. An over-the-counter home antigen test can be used to end isolation. For more information, visit our COVID-19 Patients and Contacts page.



  • Students exposed to someone with COVID-19 in school do not need to quarantine unless they become symptomatic or test positive. All students regardless of vaccination status should get tested 3-5 days after their last exposure unless they were infected with COVID-19 within the last 90 days.

  • The State strongly recommends that schools use a group-tracing approach for students exposed to COVID-19 in a K-12 setting, which allows students to remain in class following an exposure unless they develop symptoms or test positive for COVID-19. Additional guidance can be found on the CA Safe Schools Hub and in the CDPH K-12 School Guidance.


For Teachers and Staff

Follow California's Guidance on Isolation and Quarantine of the General Public, outlined on our COVID-19 Patients and Contacts page.

Iso & Q for K-12

Contra Costa County follows the State of California’s guidance for K-12 schools, including:

  • Staying Up-to-Date on Vaccinations: State and county health officials strongly recommend that students and staff get vaccinated against COVID-19 and remain up-to-date to protect themselves from serious illness.

  • Masking: It is strongly recommended but not required that all people wear masks in K-12 indoor settings. Schools must develop protocols to provide a face covering to students who fail to bring face coverings to school and desire to use one. 

  • Optimize Indoor Air Quality: For indoor spaces, ventilation should be optimized, which can be done by following COVID-19 and Improving Indoor Air Quality in Schools. Facility maintenance staff may also review technical considerations

  • Testing: Due to the increased travel and social interactions that often occurs during school-breaks, it is recommended that students and staff get tested for COVID-19 prior to returning to school following major breaks (e.g., summer, winter, spring). Schools should follow the California Department of Public Health's Preliminary Testing Framework for K-12 Schools for the 2022-2023 School Year.

For resources for colleges and universities, click here.

Resources​ for Parents & Caregivers​

Resources for School Officials

Please refer to California Department of Public Health (CDPH) K-12 Schools Guidance for the most up-to-date information, including testing, quarantine and isolation guidelines.


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School officials


Atención infantil

Every child care program is expected to continue to minimize the spread of COVID-19 and to ensure the safety of children, providers, and families. All providers should apply new and updated policies and requirements that address the need for continued infection control and should update their emergency preparedness plan. Click here to review the State Guidance for Child Care Providers and Programs.


  • GRID: K-12 Schools, Preschool/Childcare Guidance When a Student, Teacher, or Staff Member is Symptomatic, a Close Contact, or Diagnosed with COVID-19 - 9/1/2022

State (Estado)

Centers for Disease Control​ and Prevention (Centros para el Control y la Prevención de Enfermedades)

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