NOTE: All guidelines and protocols are based on the California Department of Public Health and Merced County Public Health guidelines. As a public agency, we are required to follow state and local public health guidance. These guidelines are effective January 21, 2022.

Preschool: There are specific protocols for isolation and quarantine for preschool students. Please reach out to your school site for instructions.

Every situation is different. Please call your school if you have any questions or need clarification about isolation and quarantine protocols. Thank you for helping us protect our students and staff.

ISOLATION AND QUARANTINE GUIDELINES FOR STUDENTS (Effective January 21, 2022)

  • Regardless of symptoms or vaccination status, the student is sent home to isolate for 5 days.

  • Test on Day 5.

    • If the test result is NEGATIVE on Day 5, the student can return to school on Day 6 if they meet the return to school criteria (no fever, vomiting, or diarrhea and other symptoms are resolving).

    • Once a negative test result is received on or after Day 5, and the student has not had a fever (24 hours without fever-reducing medication), vomiting or diarrhea and other symptoms are resolving, the student may return to school.

    • If no test, the person is to isolate for 10 days and return to school on Day 11


Exposed individuals are those who spent more than a cumulative total of 15 minutes (within 24 hours in a shared indoor space (e.g., classroom) with someone with lab-confirmed COVID-19 during their period of infectiousness

  • Your school will send a notification to your class, sports team, or extracurricular cohorts.

  • Students who have been exposed do not need to be quarantined and can continue coming to school if there are no symptoms.

  • Students may continue to participate in sports and extracurricular activities if there are no symptoms.

  • Students should test on Day 5 after exposure. An At-Home Rapid test or PCR test is acceptable.

    • If the test is negative and the student remains asymptomatic, continue going to school/work.

    • If the test is positive, the student must stay home, then call to inform school staff. Follow the guidance above for when a student tests positive

  • Stay home, or if at school, the student will be sent home and parents will be provided with further instructions.

  • If they test, and it is positive, follow the instructions above for positive individuals.

  • If the test is NEGATIVE, the student may return to school IF:

      • The student has NOT had a fever (24 hours without fever-reducing medication), vomiting or diarrhea and other symptoms are resolving.

  • If no TEST, the student must complete a 10-day quarantine and may return to school on Day 11 IF:

      • The student has NOT had a fever (24 hours without fever-reducing medication), vomiting or diarrhea and other symptoms are resolving.

Household or other outside exposures are being treated the same as the Group Based Tracing approach.

  • The student may come to school if there are no symptoms.

  • The student is to test on Day 5.

    • If negative: may remain at school.

    • If positive: begin isolation & follow instructions for “When a student tests positive.”


You may call your school site for questions or to discuss when your student may return.

ISOLATION AND QUARANTINE GUIDELINES FOR MCSD STAFF (Effective January 21, 2022)

On Wednesday, January 19, 2022, Merced County Public Health and California Department of Public Health (CDPH) issued updated quarantine and isolation guidance as part of the K-12 Public Health Guidance for the 2021-2022 school year. The District will follow the group tracing approach for student exposures moving forward. This is a new option from CDPH.


We are still following CAL/OSHA as well as CDPH guidelines.


CLICK HERE FOR THE MCSD ISOLATION AND QUARANTINE GUIDELINES EFFECTIVE JANUARY 21, 2022.