Connecticut has its first case of coronavirus involving a resident, Gov. Ned Lamont said on Sunday.

The patient, a resident of Wilton who is 40 to 50 years of age, is being treated at Danbury Hospital, according to a statement released by the governor’s office.

The person most likely became infected with the virus during a recent trip to California and sought medical care shortly after returning to Connecticut, the statement said.

The state is awaiting confirmation by the Centers for Disease Control and Prevention.

“We have been expecting for some time that a Connecticut resident would become infected with Covid-19, so this should not come as a surprise to anybody,” Mr. Lamont said. “We wish this patient a full recovery, and we know he is being cared for by highly competent medical teams.”

As of noon on Sunday, Connecticut had tested a total of 30 people, including the presumptive positive case, at its Department of Public Health State Laboratory. The state was awaiting the results of eight more tests.