Already a subscriber? Make sure to log into your account before viewing this content. You can access your account by hitting the “login” button on the top right corner. Still unable to see the content after signing in? Make sure your card on file is up-to-date.

A man in Switzerland has tested positive for hantavirus after sailing on the MV Hondius cruise ship at the center of an ongoing outbreak.

Some shit you should know before you dig in: If you’re unaware, the MV Hondius is a Dutch-flagged luxury cruise ship operated by Oceanwide Expeditions that left Ushuaia, Argentina, on April 1 carrying 88 passengers and 59 crew members from 23 countries. The ship was marketed as an Antarctic nature expedition with prices ranging from $16,000 to $25,000. Three people have died in the outbreak so far: a 70-year-old Dutchman who died aboard the ship on April 11, his 69-year-old wife, and a German national. The strain has been confirmed as the Andes strain of hantavirus, which is found primarily in Argentina and Chile and is the only known hantavirus strain capable of human-to-human transmission. The virus is spread through infected rodents’ urine, shit, or saliva. The CDC says roughly 38% of patients who develop respiratory symptoms die, and Argentine officials believe the Dutch couple picked up the virus before ever boarding (likely on a birdwatching trip around Ushuaia that included a stop at a landfill).

What’s going on now: The World Health Organization said Wednesday that Swiss authorities had confirmed a hantavirus case in a man who left the Hondius at St. Helena and traveled home. He sought out medical help after the ship’s operator emailed passengers alerting them to the outbreak, got tested at University Hospital Zurich, and is now in isolation and receiving treatment. A reference lab at Geneva University Hospitals confirmed the Andes virus. His wife traveled with him but has no symptoms and is isolating on her own just in case. Swiss officials said the risk to the general public there is low.

The total count linked to the Hondius now stands at eight suspected cases, three of which have been confirmed in a lab. In South Africa, two more passengers from the ship have been identified as positive for the Andes strain. Three more people on board who are suspected of being infected were taken off the ship on Wednesday and are headed to Switzerland for treatment.

In a post on X, WHO Director-General Tedros Adhanom Ghebreyesus said, “WHO continues to work with the ship’s operators to closely monitor the health of passengers and crew, working with countries to support appropriate medical follow-up and evacuation where needed..” He added, “At this stage, the overall public health risk remains low.”

This all comes as the Hondius heads for Spain’s Canary Islands, where the national government in Madrid has agreed to let it dock despite opposition from regional officials in the islands themselves.