WHO Addresses Hantavirus Cases Linked to MV Hondius Cruise Ship

Dr Tedros Adhanom Ghebreyesus, Director-General of the World Health Organization (WHO), held a media briefing today regarding a cluster of hantavirus cases associated with the cruise ship MV Hondius. This incident has resulted in eight reported cases, including three fatalities, with five confirmed as infections with the Andes virus. This virus is notably the only species known for limited human-to-human transmission through close and prolonged contact.

Describing the event, Dr Tedros stated, "While this is a serious incident, WHO assesses the public health risk as low." He cautioned that due to the virus's incubation period, it is possible that additional cases may emerge. The WHO is conducting a coordinated response with multiple nations in compliance with the International Health Regulations, which outline the obligations and rights of countries and WHO in managing public health emergencies.

Dr Tedros highlighted the importance of international collaboration in addressing health threats, saying, "Our priorities are to ensure the affected patients receive care, that the remaining passengers on the ship are kept safe and treated with dignity, and to prevent any further spread of the virus."

The WHO has initiated several actions since being alerted to the situation on 2 May 2026. These include deploying a medical expert aboard the ship to conduct a thorough medical evaluation of passengers and crew while collecting vital data to assess the risk of infection. In an effort to enhance testing abilities, the WHO has also organised the shipment of 2,500 diagnostic kits from Argentina to laboratories in five different countries.

Moreover, the organisation is formulating comprehensive guidelines for the safe and respectful disembarkation and subsequent travel of passengers and crew once they arrive at their destinations. Given concerns regarding the virus, health authorities are vigilant and proactive in monitoring the situation and ensuring public safety.

In parallel, Dr Naveen Kumar, Director of the Indian Council of Medical Research's National Institute of Virology, provided reassurance regarding the situation in India. He stated that there is no immediate public health threat posed by the hantavirus outbreak, despite reports of two Indian nationals on board the cruise ship. Dr Kumar mentioned that these cases appear to be isolated and there is no evidence supporting community transmission in India. The WHO substantiated this statement, noting that hantavirus infections are uncommon and typically occur due to contact with rodents rather than human transmission.

Dr Kumar also outlined that India's laboratory capacities are adequate for identifying suspected hantavirus cases. The country has diagnostic capabilities at the National Institute of Virology and through a network of 165 Viral Research and Diagnostic Laboratories equipped with reverse transcription polymerase chain reaction (RT-PCR) technology for confirming infections.

He elaborated that the symptoms of hantavirus typically surface one to five weeks post-exposure and may resemble flu-like illnesses initially. Early signs may include fever, severe body aches, fatigue, and respiratory issues, with severe cases potentially leading to significant complications.

As a precautionary measure, Dr Kumar advised individuals working or travelling in rodent-inhabited areas to observe hygiene practices and avoid potential exposure. He warned that environmental factors, such as climate change and urbanisation, could inadvertently increase the risk of rodent-associated diseases like hantavirus.

Despite the gravity of the current outbreak linked to the cruise ship, both the WHO and Indian health officials emphasise the importance of maintaining standard sanitation measures and rodent control to mitigate risks going forward.