The Massachusetts Department of Public Health has confirmed Barnstable County’s first case of Covid-19, the coronavirus disease, according to an announcement from Cape Cod Healthcare Saturday.

Admitted to a Cape Cod Healthcare hospital with respiratory symptoms, the patient was first screened following the Centers for Disease Control and Prevention (CDC) screening criteria, according to the statement.

Cape Cod Healthcare then consulted with the state public health department, which approved the patient for Covid-19 testing. The test result was reported positive about 24 hours later, according to the Cape-based health care network.

“The patient will remain in our care until they are stable and can return home for the remainder of the CDC recommended quarantine period of 14 days,” the statement continued.

Staff members who had contact with the patient are being monitored, and the patient’s condition will be followed by the state department of public health, according to Cape Cod Healthcare.

Statewide, as of Saturday afternoon, there are now 19 confirmed cases and 138 presumptive cases of Covid-19, the Massachusetts Department of Public Health reported.

On Martha’s Vineyard, no positive results have been reported following coronavirus testing, which until late Friday had been strictly controlled by state epidemiologists.

Friday afternoon, the state public health department announced new guidance rules allowing primary care physicians to have patients tested by two commercial labs as well as at the state lab.

Martha’s Vineyard Hospital chief executive officer Denise Schepici has asked Islanders to contact their personal physicians if they want to be tested, and not come to the hospital unless they need immediate care.

The hospital has also limited patient visitors to one at a time in most cases, closed the cafeteria to non-employees and stopped allowing people to cut through Windemere on their way from one wing of the building to another.

“We’re not locking down the hospital for care. We’re here to take care of our patients,” Ms. Schepici said. “We’re using an abundance of caution to protect our staff.”