Multiple schools in the Bay Area have announced campus closures due to coronavirus concerns.
On Thursday, Action Day Primary Plus in San Jose sent a letter to parents that the school will be closed until Monday after learning a teacher tested positive for coronavirus.
The teacher at the school's Moorpark facility was sent home and has not returned to work since Feb. 26, the school said. The teacher is receiving medical care.
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County health officials told the school that asymptomatic individuals are not considered contagious, the school said.
Action Day Primary Plus officials said the closure is out of an abundance of caution and safety, and the school will conduct a deep cleaning of the entire facility. All school-related activities scheduled for Thursday and Friday were canceled.
Meanwhile, an Oakland charter school has closed through the end of the week after a staff member's potential exposure to the coronavirus, according to a letter sent to the Oakland Unified School District community.
Aspire Monarch Academy elected to "take a conservative approach" and close to assess the risk presented by the staff member, whose exposure was not confirmed, district officials said.
The district is preparing for a number of future scenarios, and depending on developments, may be limiting or canceling large gatherings and extracurricular activities, including sports and clubs, assemblies and field trips.
The district also is outlining a contingency plan in the event of a longer-term school closure, officials said.
Alameda County Public Health officials have not recommended such actions as of Thursday.
The county declared a public health emergency earlier this week.