BOSTON — Days after a Boston man was confirmed to have the first case of a new coronavirus in Massachusetts, Gov. Charlie Baker said the risk for infection in the state is "extremely low."

State public health officials announced Saturday afternoon that the respiratory virus was now present in Massachusetts, citing test results received Friday evening from the U.S. Centers for Disease Control and Prevention for a man in his 20s who had "recently" traveled to Wuhan, China. Subsequently, University of Massachusetts Boston officials said the man was a "member of the UMass Boston community."

The Department of Public Health did not specify when the man had returned from Wuhan, the city where the new coronavirus was first identified. He sought medical care soon after returning to Massachusetts, has been isolated since then, and "will continue to remain isolated until cleared by public health officials," the department said.

Baker said the man "arrived before the CDC issued guidelines, generally, to airports around the country."

"The risk for coronavirus infection in Massachusetts is extremely low, and based on firsthand information associated with this particular individual, people are not particularly concerned about his travels once he got back to Massachusetts," Baker told reporters after meeting with Senate President Karen Spilka and House Speaker Robert DeLeo. "He pretty much self-quarantined himself from the time he got back here until he got tested."