The Minnesota Department of Health said it’s monitoring the condition of a person who "may have briefly been exposed overseas" to another person who tested positive for hantavirus after being on board the MV Hondius.

"MDH is in contact with the person who was exposed," the department said in a statement on Tuesday. "They have been very cooperative, and we are monitoring them daily for symptoms. The person does not currently have symptoms. MDH will not release any additional information on the person to protect their privacy."

-ABC News’ Jessica Gorman

The Illinois Department of Health said Tuesday it is investigating a potential case of hantavirus in a Winnebago County resident that is not connected to the MV Hondius outbreak.

"The resident lives in Winnebago County, has not travelled internationally, and has not come in contact with individuals associated with the MV Hondius outbreak," the health department said in a statement. "They are suspected to have acquired a North American strain of the virus while cleaning a home where rodent droppings were present."

The individual experienced mild symptoms and did not require hospitalization. The health department said it is working with the Centers for Disease Control and Prevention on additional testing to confirm if it is a hantavirus case.

Unlike the strain of hantavirus in the cruise outbreak, the North American strains are not known to spread from person-to-person, health officials said.

Jake Rosmarin, who is among the 15 hantavirus-negative passengers quarantining at the University of Nebraska Medical Center after disembarking the MV Hondius cruise ship, shared a video tour of his room on Instagram on Tuesday.

Rosmarin showed off his stationary bike, TV, bed, recliner and desk, saying, “The room is very spacious and comfortable.”

“I’m hoping to give more updates while I’m here. I’m feeling well,” he said.

Rosmarin told ABC News earlier on Tuesday that he is not experiencing any symptoms and plans on remaining in quarantine for the next 42 days.

"I think that is the best decision that's for me and for my family, and I know that here, I'm in the best care possible," Rosmarin said.

Fifteen passengers remain in the quarantine unit and one person remains in the biocontainment unit at Nebraska Medicine, hospital officials said.

The passengers are undergoing in-depth interviews to trace their contacts as well as regular symptom monitoring, officials said.

Dr. Tedros Adhanom Ghebreyesus, Director-General of the World Health Organization, stressed on Tuesday that “there is no sign that we're seeing the start of a larger outbreak.”

He said the process of offloading passengers from the cruise ship was successful and he opened up about the mental struggles those on board were facing.

“Almost 150 people from 23 countries were on this ship for weeks, in what must have been a very frightening situation. Even some of the passengers were facing mental breakdown,” he said at a news conference.

“There were some people around the world calling for the passengers to be contained on the ship for the full quarantine period. Our view was that it would have been inhumane and unnecessary,” he said.

The director-general said that of the 11 reported cases, all are among the ship’s passengers and crew.

“There have been no deaths since May 2, when WHO was first informed of the cluster of cases,” he said. “All suspected and confirmed cases have been isolated and managed under strict medical supervision, minimizing any risk of further transmission.”

-ABC News’ Othon Leyva