The coronavirus is making its presence felt in Martha’s Vineyard schools, with four staff members under self-quarantine after recent international travel and a number of children out of class.

“Some of our students that are high risk are staying home,” schools superintendent Matthew D’Andrea said Monday night at the regional high school committee meeting. “Teachers are working to have tutoring-at-home plans for those students.”

School trips already canceled include a delegation to the Model United Nations and a ski trip, with a trip to Spain in the process of being called off, Mr. D’Andrea said. Off-Island field trips closer to home are being approved provisionally, to be reviewed when their dates draw nearer.

The school district has stocked up on supplies such as soap, hand sanitizer, face masks and tissues. “We’ve stepped up our cleaning,” Mr. D’Andrea told committee members. “We’re doing it more frequently, especially in what we would call high touch areas — desks, computer keyboards, counter-tops.”

School bus drivers are equipped with Lysol to spray bus seats, he added, and the district is looking to purchase spray disinfectants that can be aimed at doorknobs and other frequently-handled surfaces.

Absences are being tracked and school nurses are designating spaces where children with symptoms can be separated from the rest of the student body. A school closure is not being considered at the present moment, Mr. D’Andrea said. Under the state’s current education policy, any school closure would be treated like snow days. The Massachusetts Department of Education allows districts five snow days, with any additional days of closure added to the end of the school year to make up the required 180 days of instruction.

The reason for the state’s policy, Mr. D’Andrea told the committee, is that English language learners and students with individual education plans don’t receive adequate support outside the classroom.

“The department of education very much does not like instruction at home. The way they said it is, ‘it is off the table.’”

Nonetheless, Mr. D’Andrea and his staff are looking at ways they could deliver instruction to students should the coronavirus pandemic lead to closures. The district also would be required to continue some of its non-educational services.

“We would still be responsible for providing free and reduced lunch and some of the health and social services some students receive,” he said.

Lunches would most likely be prepared by district food service workers at the high school where there are two kitchens, Mr. D’Andrea said. In making its preparedness plans, he said the district is communicating regularly with state, federal and local health authorities.

“Whenever we have. . . some sort of health crisis, we rely heavily on the Massachusetts Department of Public Health and the Centers for Disease Control and Prevention. They are the experts that provide us with guidance on the best way to move forward within the schools.”

School administrators have also been working closely with town boards of health.

“The boards of health have been tremendously helpful,” Mr. D’Andrea said. “I think that we’re in a good spot considering everything that’s going on at this time.”

The superintendent emphasized that public health concerns posed by the coronavirus, and strategies to combat it, are evolving rapidly.

“It’s changing every day,” he said. “We’re just going to stay on top of it.”