From LASD Health Services Department: 
When to Keep Your Child Home From School

Sometimes it is difficult to know whether or not to send your child to school.  The following guidelines are indications that you should keep your child at home.  In this way, you are helping to control the spread of COVID, influenza, colds, and other contagious illnesses.

Keep your child at home when they have any of the following:

If your child tests positive for COVID-19 or any other communicable illness, they may return to school once the following criteria have been met:

• fever free for 24 hours without medication
• vomiting and/or diarrhea free for 48 hours without medication
• all other symptoms are mild and improving

Review the CDPH symptom guidance to confirm when your child is ready to return to school: Considerations when a Child has Symptoms of Illness in Child Care or School
*The potential infectious period is 2 days before the date of symptoms began or the positive test date (if no symptoms) through Day 10. (Day 0 is the symptom onset date or positive test date).

NOTIFY THE OFFICE IMMEDIATELY if your child tests positive for COVID-19 or is diagnosed with any other communicable illness (e.g. chicken pox, mumps/measles, whooping cough (pertussis)).  

Note: The following information is only a guide to common childhood health concerns. Contact your health care provider for more information. Always bring a copy of a physician’s note to school and/or notify the school if your child will have an extended absence due to a health condition for 5 days or longer.

Content sources:

 Centers for Disease Control and Prevention

National Center for Immunization and Respiratory Diseases (NCIRD)

Should you go to school?