However, AIPAC, which held its policy conference in D.C. earlier this week, warned that a group of attendees made contact with an infected patient before traveling from New York to the event. No one who attended the conference has tested positive for coronavirus yet, AIPAC said Wednesday.

At a news conference Friday, county officials confirmed that the cases were not examples of community spread of the coronavirus. The officials also said that contact investigations were underway and that no large-scale closures were being recommended at this time.

Dr. Travis Gayles, the county health officer and chief of public health services, said the three patients are all "doing well clinically" and that "for the most part, their symptoms have abated."

"That suggests that the severity of the illness, even if it's here, remains in a mild to moderate category," he said.