Should we fear the end of cruises?

May 7th, 2026   Rédaction   No Comment   Wellness    Argentine, Croisières, Hantavirus, MV Hondius, Oceanwide Expeditions, Tourisme, Ushuaia    1246 views

The health alert triggered in early May involving the expedition ship MV Hondius serves as a reminder of how vulnerable adventure cruises remain to complex health situations when operating in remote areas. According to the World Health Organization (WHO), seven cases linked to a possible hantavirus were identified on board, including two biologically confirmed cases and several severe cases resulting in deaths that are still under investigation.

The ship, operated by Oceanwide Expeditions, was on a long cruise between Ushuaia, Antarctica, and several islands in the South Atlantic.

The incident mobilized several international health authorities, notably in South Africa, Spain, the Netherlands, and the United Kingdom.

A rare disease, transmitted mainly by rodents
According to Dr. Bensadoun, a physician and specialist in science communication, hantaviruses are viruses transmitted primarily by rodents and their droppings.

Human infection generally occurs after inhaling contaminated dust in enclosed or inadequately cleaned spaces.

Unlike typical respiratory viruses, human-to-human transmission remains rare.

Health authorities note that only certain South American variants, notably the Andes virus, have shown a limited capacity for
human-to-human transmission, primarily during close and prolonged contact.

For tourism professionals, this point is essential: the Hondius outbreak does not represent a scenario of widespread transmission comparable to COVID-19. The WHO also estimates that the risk to the general population remains low.
Why a cruise ship amplifies the perception of risk

The maritime context plays a central role in the media coverage of this case.

An expedition ship combines several sensitive factors: geographic isolation, relative crowding, international passengers, limited access to specialized care, and the need for potential medical evacuations.

Even when an infectious agent is not highly contagious, the presence of severe cases on board a ship immediately creates significant concern, especially since the collective imagination remains marked by the health crises experienced during the COVID-19 pandemic.

In the case of the Hondius, authorities are still working to determine the exact source of exposure.

Environmental contamination prior to boarding? Contaminated equipment? Limited close-contact transmission between certain individuals.
The official absence of rodents on board, mentioned in several initial reports, has yet to be definitively confirmed by the environmental investigation.

Initially misleading symptoms
One of the major challenges with hantavirus lies in its highly nonspecific early symptoms: fever, severe fatigue, muscle aches, digestive problems, or headaches. At first glance, nothing seems alarming…

In the most severe cases, the patient’s condition can deteriorate rapidly, leading to acute respiratory distress caused by massive pulmonary edema.

Some forms can also cause significant kidney damage.

This rapid progression explains the need for early diagnosis and specialized hospital care.

To date, according to Dr. Bensadoun writing on his blog Okymydoc, there is neither a specific antiviral treatment approved for routine use nor a widely available vaccine
against hantaviruses.

Management relies primarily on intensive supportive care: respiratory support, resuscitation, mechanical ventilation, and oxygenation.

Experts also emphasize that rapid detection significantly improves the chances of survival.

Heightened vigilance without alarmism
For the tourism and expedition cruise sectors, this incident highlights several strategic challenges, such as onboard medical capabilities, isolation protocols, evacuation management, and crisis communication

It also serves as a reminder that health risks on cruises are not limited to highly contagious diseases but can arise in isolated environments with minimal medical infrastructure.

The Hondius cluster, according to international health authorities, constitutes a serious warning requiring investigation, surveillance, and contact tracing, but does not signal the emergence of a new respiratory pandemic.

For tour operators, the main lesson is the importance of operational preparedness for rare but potentially serious health events, particularly on expedition itineraries far from major medical infrastructure.

Evelyne Dreyfus