Manhattan Beach Unified School District

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MBUSD Community Message - April 26, 2022 - COVID-19 Cases at MCHS

Dear MBUSD Families and Community, 

We would like to notify you that we have recently received information about multiple confirmed cases of COVID-19 at Mira Costa High School, specifically among individuals involved with the production of Beauty and the Beast. While none of these cases were known at the time of the performances, public health guidelines define the contagious period as beginning 48 hours prior to symptom onset or a positive test. Thus, if you attended a performance on Friday or Saturday, April 22 or 23, 2022, or if you know anyone who was in attendance, we want you to know that everyone in the auditorium is considered to be potentially exposed.

 As such, the following guidance from LACDPH is provided:

  • It is strongly recommended that everyone who attended a performance masks at all times for 10 days (with day 1 being the day after the performance they attended), both indoors and outdoors, except when eating or drinking. A well-fitting, non-cloth mask of multiple layers of non-woven material with a nose wire is advised. See for more information.

  • It is strongly recommended that everyone who attended a performance gets tested at least once within the 10 days after the last date of exposure, preferably within 3 to 5 days after the date of the performance. Individuals who had a positive COVID-19 test in the past 90 days are exempt from testing recommendations/ requirements.

  • All individuals who attended a performance should monitor their health for 10 days after the date of the performance. If symptoms of COVID-19 develop, they should remain at home and test immediately. Individuals who test positive for COVID-19 should isolate at home following Home Isolation Instructions for COVID-19 ( and, if a student or staff member, notify us.

Ensuring that our community and our educational environment are safe is of greatest importance to us. For questions about Coronavirus in Los Angeles County, please visit the LA County Department of Public Health coronavirus webpage at

If you have any questions or concerns please email us at [email protected]


John Bowes, Ed.D.
MBUSD Superintendent