School districts across Long Island are working to keep children safe amid the coronavirus outbreak by sanitizing their schools or temporarily closing their doors.

"Any school that has a child that tests positive must close immediately for 24 hours," Gov. Andrew Cuomo said.

Schools in the Westbury School District were sanitized over the weekend after it was informed that a family within the district is under mandatory quarantine after coming into contact with someone who has tested positive for coronavirus.

Westbury will remain open even though some families say one family in the district is under mandatory quarantine.

In a statement to News 12, Westbury's schools superintendent said in part, "At this time, no student or staff member within the Westbury School District has tested positive. As a proactive measure, the district has thoroughly cleaned and sanitized each district building, and we will continue to apply disinfectant in the evenings."

SCHOOL CLOSURES: Get the list of local school closures here

The Valley Stream School District 30 was open Tuesday after being sanitized. District officials announced that a spouse of a faculty member at Shaw Avenue Elementary School is in 14-day self-isolation for having flu-like symptoms.

Shoreham-Wading River School District reopened Tuesday. Students were unexpectedly sent home Monday after a member of the high school security team said their spouse may have the virus.

MORE: Coronavirus details from the CDC

Meanwhile, the Plainview-Old Bethpage School District was closed Tuesday after a staff member tested positive for the virus. Buildings within the district were cleaned and will remain closed Wednesday.

The Locust Valley Central School District was also closed after two contracted employees involved in transporting students have tested positive for the virus. The Glen Cove and Oyster Bay districts also announced they were closed Tuesday. In the Oyster Bay-East Norwich Central School District, two bus drivers for a transportation contractor that takes students to places other than the district tested positive for the virus and schools were closed Tuesday for cleaning. The library across the street from Oyster Bay High School was also closed.

GET THE FACTS: What you need to know about coronavirus

Hofstra University canceled all of its in-person classes this week. University officials say a student came in contact with someone who had previously tested positive for coronavirus and is now experiencing flu-like symptoms.

Touro College is holding online classes through Thursday as a test in case the school has to close because of an emergency. Molloy College has halted in-person classes through March 28.

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