PORTLAND, Maine — A local man who in April sued a national chain of pet supply stores and a Connecticut company, alleging a rat he purchased to feed his son’s pet snake infected him with rat-bite fever, has settled the lawsuit.

Dominic Profenno Jr., 52, of Portland reached a settlement with Petco Animal Supplies Inc., based in San Diego, California, and Fish Mart Inc. of New Haven, Connecticut, according to a document filed Thursday in U.S. District Court in Portland.

Fish Mart sold the rat to the South Portland store, according to the complaint.

Federal court rules do not require details of the settlement agreement to be filed.

Thomas Douglas, the Portland attorney who represents Profenno, declined Thursday to comment on the settlement. Efforts to reach Frederick Moore, the Portland attorney who represented Petco and Fish Mart, were unsuccessful.

Profenno sought compensatory damages, including payment of $170,000 in medical bills and lost wages, punitive damages and attorneys fees and costs, according to the complaint.

He purchased the rat on Feb. 22, 2013, at the Petco store in South Portland as food for his son’s pet boa constrictor, which was not described in the complaint, and had done this on previous occasions, the complaint said. He kept the rat in a large aquarium tank and cared for it until March 13, 2013, when it was fed to the snake.

The Portland man claims the rat bit him twice on March 12, 2013, and he subsequently came down with rat-bite fever and was hospitalized for 35 days. Two to three weeks after purchasing the rat, Profenno became ill and suffered multiple spinal abscesses, painful inflammation of the joints, extreme debilitation and pain, according to the complaint.

While he was ill, Profenno was unable to work, the complaint said. The Portland man is a professional cleaner, Douglas said in April, when the lawsuit was filed. Profenno was unable to drive and get to work for between six and seven months.

A spokesman for Petco did not comment on the pending litigation when the lawsuit was filed but did issue a statement.

“The health and safety of people and pets is always our top priority and we take Mr. Profenno’s claims seriously,” David Hallisey, director of communications at Petco, said April 24 in an email. “Our animal sourcing, handling and care standards are among the highest in the industry. All of our procedures are developed and frequently reviewed by an independent panel of animal care experts, veterinarians and specialists.

“As it relates to companion animals, including rats, we provide all new pet parents with an outline of proper care instructions, safe handling guidelines and potential health risks, along with our recommendation to seek medical attention any time they receive a bite, scratch or other questionable contact with their pet,” Hallisey said last year.