BOSTON (CBS) – A Navy ship docked in Boston is seeing a spike in coronavirus cases.

At least 18 sailors onboard the USNS Leroy Grumman have tested positive for COVID-19, including the crew’s medic.

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The ship has been in Boston since January for scheduled maintenance and it was scheduled to leave at the end of May.

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Everyone onboard is now in quarantine.

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There are about 50 people currently on the ship.