Natick Public Schools are deep cleaning the high school because the resident has two children that attend the school, according to Superintendent of Schools Anna Nolin. The teenagers do not have any symptoms of coronavirus, COVID-19, and "the family made a decision to keep the students out of school prior to this becoming a presumptive case."

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NATICK — A resident with children at Natick High School has a presumed positive test for COVID-19, commonly called coronavirus.

The resident is one of 28 people in Massachusetts that has a presumed positive test. A presumptive positive is defined by the state as a person whose test has come back as positive from the state Public Health Lab, and the specimens will be sent to the U.S. Centers for Disease Control and Prevention for confirmation.

Superintendent of Schools Anna Nolin announced all evening activities at the schools were cancelled on Sunday. Nonlin said the Sunday night closure was "out of an abundance of caution; we made the proactive decision to close Natick High" and "allow for a second thorough cleaning and sanitation round for every classroom and space throughout the building. This second cleaning will conclude by midnight tonight. All custodians involved used recommended protective gear while cleaning."

A message was sent to the high school community at large about the school closure due to the large numbers of clinics, SAT prep and practices that were anticipated for this evening, and the large number of community members who often seek to use the track and site in general.

15 more in Massachusetts test positive for coronavirus. Total cases up to 28 as of Sunday.

The number of people in Massachusetts who have tested positive for the new coronavirus more than doubled on Sunday to 28, up from 13 on Saturday, state public health officials said.

All 15 of the new cases had a direct connection to a meeting of the biotech firm Biogen that was held for company employees at a Boston hotel late last month, the state Department of Public Health said in an emailed statement.

Nolin wrote on the district's website that she and Jim White, the director of the Natick Board of Health, learned of the information at 2 p.m. Sunday.

"We were also notified that both students are healthy and not exhibiting any symptoms and were directed to remain out of school," Nolin wrote. "Additionally, the family made a decision to keep the students out of school prior to this becoming a presumptive case."

The children and family are following the quarantine protocol from the Massachusetts Department of Public Health (MDPH) until cleared to return to school. As with any communicable disease, towns and schools are required to follow the direction from the Massachusetts Department of Public Health.

Area fire departments, police, take coronavirus precautions

"We are planning for an on-time opening of all schools on Monday, March 9, 2020 as are neighboring town schools and communities who are handling the same scenario we are experiencing," wrote Nolin. "We will continue to track and trend illness in all of the schools. Anyone who is ill should remain at home and we ask that you please consult with your primary care physician if you have any questions or concerns about sending your child to school."

The joint town and school staff is conducting deep cleaning and disinfecting at all schools daily in keeping with the protocol described in the Friday, March 6, blast from the public schools.

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"Deep cleaning on buses is also occurring. It should be noted that the custodians have already been using this equipment and enhanced cleaning protocol in all schools as we do every flu season In addition to our buildings," wrote Nolin.