BOSTON (CBS) — Tufts Medical Center confirmed Friday night that 10 employees at the hospital have tested positive for the coronavirus. The center also 15 patients under investigation for the disease.

The hospital said they have no confirmed coronavirus inpatient cases or any patients in the ICU for coronavirus at the hospital.

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Nine employees at Brigham and Women’s hospital have also tested positive for the virus, as well as one at Greater Lawrence Family Health Center in Lawrence.

“We are taking this situation very seriously and taking all necessary precautions for our staff and patients,” the health center tweeted Friday. “The site at 73D Winthrop Ave. has been closed and will remain closed until it has been professionally cleaned by a Department of Health sanctioned cleaning company.”

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The healthcare center suggested that anyone who has visited the clinic in the last two weeks self-quarantine.

Healthcare workers have said they are in dire need of personal protective equipment. On Friday, Boston Mayor Marty Walsh asked private businesses do their part to help medical workers during the coronavirus, including donating supplies.

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As of Friday afternoon, Massachusetts had 413 confirmed cases of the coronavirus.