90-Second Read: Hantavirus live updates: MV Hondius arrives off the coast of Tenerife

The total number of confirmed and probable cases of Hantavirus onboard the ship has risen to 10, including two people confirmed to have died from the virus and one person who remains suspected to have died from the virus. The Illinois Department of Public Health is investigating a potential Hantavirus case in an Illinois resident in Winnebago County, not linked to an outbreak on a cruise ship, the agency said Tuesday. 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.

The American passenger who tested positive for Hantavirus will be transported to the Nebraska Biocontainment Unit upon arrival. Passengers onboard the MV Hondius cruise ship started disembarking Sunday in Tenerife, in the Canary Islands, to be transferred to charter flights back to their home countries. On Monday, 16 American cruise ship passengers arrived at the University of Nebraska Medical Center, 15 are in the quarantine unit and one person is in the biocontainment unit, officials said.

Here's what you need to know about Hantavirus including what it is, how it spreads, how it's treated and if there are any prevention methods: Hantaviruses are a family of viruses that can cause serious illnesses and death, according to the CDC. Hantaviruses may also spread from person to person, but that also is rare and only suspected for one subtype, the Andes virus, from South America, according to the WHO. There are currently no approved vaccines anywhere in the world that specifically protect against the Andes virus, but scientists are working on it.