Encore is not aware of the person having any interaction with other guests, according to a spokesman, who said said he could not comment on the identity of the resort’s visitors.

Encore and the Massachusetts Gaming Commission announced Thursday that a guest at the Everett resort had tested positive for the virus, known as Covid-19. Casino officials said in a statement that the Massachusetts Department of Public Health has informed the casino that the person “was low risk and showing no signs of symptoms when at the resort.”

Utah Jazz star Donovan Mitchell, who has reportedly tested positive for the coronavirus, visited Encore Boston Harbor casino March 5 while his team was in town to play the Boston Celtics, a person with knowledge of the situation confirmed Thursday.


The gaming commission, which regulates casinos in the state, also declined to comment on the identity of the guest. It issued a statement that said members had been informed by the public health department that the risk to other visitors is “minimal."

“Encore has reported that this individual was present at the casino for one hour and had contact while there with a small number of individuals, currently determined to be seven," the commission said in a statement. “Encore has reported that all of these individuals have been identified and alerted.”

Encore, which said the guest in question was in the high-limit area, said it is "being vigilant and has notified employees who had direct contact with this individual to take precautionary measures. The employees have been placed on paid leave.”

The Celtics, who lost at home to the Jazz on March 6, have said they have been told by public health officials that it is unlikely that any players on that team were contagious at the time of the game at TD Garden. Numerous reports have said that Mitchell and fellow All-Star Rudy Gobert tested positive for Covid-19.


The appearance of the illness on the Jazz roster preceded the decision by the NBA to suspend its season amid the outbreak. Celtics players have gone into self-quarantine, and other sports leagues have also been pushing back and canceling games and events.

The casino says it will remain open, though as part of its overall strategy is soon going to temporarily close its luxury buffet and its Memoire nightclub.

Encore says it has taken other measures to guard against the spread of the illness in the massive gathering place. It told the gaming commission Thursday that it has stepped up cleaning and sanitation, ordered sick employees to stay home, and has retained consultants to advise it on public health matters.

The casino has also started to take the temperature of guests with symptoms of respiratory illness. People who have temperatures above 100 degrees are being asked to leave and urged to seek medical care.

Andy Rosen can be reached at andrew.rosen@globe.com. Follow him on Twitter @andyrosen.