BY EMMANUEL OGBONNA
The cruise ship at the center of a deadly hantavirus outbreak arrived at the Dutch port city of Rotterdam on Monday, bringing an end to a tense voyage that prompted an international public health response and raised concerns among health authorities across several countries.
The vessel, the MV Hondius, docked carrying 25 crew members and two medical personnel after completing a six-day journey from the Canary Islands. All passengers had already disembarked earlier under strict health supervision as governments around the world scrambled to contain the spread of the virus linked to the ship.
At the port in Rotterdam, workers dressed in full-body hazardous material suits were seen boarding the vessel as preparations began for a large-scale decontamination effort. Nearby, Dutch authorities established a temporary quarantine zone consisting of white container units positioned along the waterfront. Crew members unable to immediately return to their home countries are expected to remain isolated there under medical observation.
The outbreak aboard the expedition cruise ship has so far resulted in at least 11 infections, including nine confirmed cases, according to health officials. Three passengers have died, among them a Dutch couple believed to have first contracted the virus during travel in South America before boarding the ship. Investigators believe the couple may have unknowingly introduced the Andes strain of hantavirus onto the vessel, leading to the subsequent outbreak.
The incident has become the first known hantavirus outbreak associated with a cruise ship, drawing attention from global disease monitoring agencies and infectious disease specialists. Hantaviruses are typically transmitted through contact with infected rodents or their droppings, though the Andes strain found in South America is one of the few variants known to have possible human-to-human transmission under certain conditions.
The ship’s operator, oceanwide-expeditions.com said the voyage from Tenerife to the Netherlands proceeded without further illness among those remaining on board. The company stated that the crew and medical staff currently aboard the vessel are not experiencing symptoms.
Earlier this month, the remaining passengers aboard the ship were escorted off in Tenerife by health personnel wearing protective equipment before being placed on flights to more than 20 countries, where they entered quarantine or medical observation programs. Authorities in several nations have since been monitoring passengers and crew members for symptoms associated with the virus.
The Public Health Agency of Canada confirmed that one of four Canadians being monitored after leaving the ship tested positive for hantavirus on Sunday. Canadian officials said details of the case would be shared with the World Health Organization as international coordination efforts continue.
In the United States, 18 Americans connected to the voyage are currently under observation at specialized infectious disease treatment centers designed to handle highly contagious illnesses. Dutch authorities have also confirmed that roughly two dozen passengers and crew members are already quarantined within the Netherlands after arriving on earlier flights over the past two weeks.
Dutch health officials said the ship will undergo extensive cleaning and disinfection procedures based on national public health protocols before it can return to service. Specialized cleaning crews equipped with protective gear are expected to sanitize all areas of the vessel, including cabins, dining facilities, ventilation systems, and shared spaces.
The Dutch health ministry said measures are being implemented to ensure workers involved in the decontamination process are adequately protected and will not require quarantine after completing the operation. Public health inspectors are also expected to conduct a final safety assessment before the ship is cleared to sail again.
Despite the seriousness of the outbreak, Oceanwide Expeditions indicated it does not currently anticipate major disruptions to its broader operations. The company is still planning for another Arctic cruise scheduled to depart from Keflavik on May 29.
Meanwhile, scientists continue studying the strain involved in the outbreak. The Pasteur Institute announced that researchers had fully sequenced the Andes virus taken from an infected French passenger aboard the ship. According to the institute, the genetic analysis matched previously known South American variants and showed no evidence of mutations that would make the virus more contagious or more dangerous than existing strains.
Health experts say the investigation into how the virus spread aboard the cruise ship remains ongoing, with international authorities closely examining passenger interactions, travel histories, and onboard conditions in an effort to determine whether any unusual transmission patterns occurred during the voyage.
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