Health officials are monitoring a hantavirus outbreak aboard the cruise ship MV Hondius after several passengers and crew tested positive for the virus.

This incident highlights the risks of zoonotic disease transmission in confined travel environments and the coordination required between international health agencies to prevent wider outbreaks.

The MV Hondius was anchored near Tenerife in Spain’s Canary Islands when the outbreak was identified. More than 140 passengers and crew were on board [3]. American passengers disembarked from the vessel on May 10, 2026 [0].

Reports on the total number of infections vary. Some sources identify one confirmed case among U.S. passengers [1], while other reports state seven positive hantavirus tests are linked to the cruise ship [4]. Additionally, 10 Canadians have been connected to the outbreak [2].

U.S. health authorities have coordinated the transport of affected individuals to medical facilities. A flight carrying passengers arrived in Nebraska on Monday, May 11, 2026 [5], and another sick patient was taken to a facility in Atlanta [0].

WHO officials said that hantavirus typically spreads from rodents. The agency said that person-to-person transmission is only possible after prolonged close contact. Because of this limitation, the risk to the general public is assessed as very low [1, 4].

"Risk to public is low," officials said [1]. Other U.S. health officials said the risk was "very, very low" as patients arrived for treatment [4].

“"Risk to public is low," officials said”

The rapid quarantine and isolation of passengers arriving in Nebraska and Atlanta demonstrate a precautionary approach to zoonotic diseases. While the low risk of human-to-human transmission prevents a wider epidemic, the presence of the virus on a commercial vessel suggests a failure in pest control or sanitation protocols aboard the ship.