The Kansas Department of Health and Environment is currently monitoring three people who experienced a “high-risk exposure” to a person who contracted Andes hantavirus.

The KDHE announced in a press release Tuesday afternoon it was working with the CDC and a state local health department to monitor three individuals who had a high-risk exposure to someone who was on the MV Hondius cruise ship who later tested positive for the Andes hantavirus. According to the CDC, a high-risk exposure may include “prolonged close contact or shared living space with a symptomatic individual or close proximity during travel.”

The three individuals — the release noted it will not share additional details about the three people to protect their privacy — were not aboard the cruise ship and are not currently experiencing any symptoms, according to the KDHE. Individuals are not considered to be infectious to others unless they become symptomatic.

The state health department noted that hantaviruses are usually spread through contact with wild rodent droppings, urine and saliva. That class of viruses can be found in the United States, mostly in the Western part of the country, and the U.S. identifies 30 people with hantavirus every year on average.

The specific hantavirus that caused the cruise ship outbreak is called the Andes virus, which is known to be able to spread from person to person in situations involving close, prolonged contact with a person who is exhibiting symptoms of the disease.

The state health department said there are no suspected or confirmed cases of hantavirus in Kansas. The department currently assesses the risk to the public from the Andes hantavirus as “extremely low” and will provide updates as necessary.