Where did the hantavirus outbreak start, and where has it spread? | Health News
Hantavirus Outbreak Linked to MV Hondius Cruise Ship; Passengers Evacuated
A U.S. citizen has tested positive for hantavirus after traveling on the MV Hondius cruise ship, which has been affected by the virus. Meanwhile, a French traveler aboard the vessel has developed symptoms as the ship undergoes evacuation, with passengers returning to their home countries.
The MV Hondius anchored near Tenerife, the largest of Spain’s Canary Islands, on Sunday, prompting the evacuation of passengers via military and government flights. At least eight individuals who were onboard have either been confirmed or are suspected cases of hantavirus. Three fatalities have been reported, and at least one person is currently in intensive care.
Initially, officials from the Spanish Ministry of Health, the World Health Organization (WHO), and the cruise line Oceanwide Expeditions indicated that no passengers showed symptoms. However, the situation has changed as more individuals have tested positive.
Authorities are working swiftly to trace the outbreak’s origin as passengers are flown home for evaluation. Investigators have focused their attention on Argentina, where the MV Hondius embarked on April 1.
WHO Director-General Tedros Adhanom Ghebreyesus was present during the evacuation process and noted that residents of Tenerife and the general public are considered to be at low risk of contracting the virus. Maria Van Kerkhove, a top epidemiologist with WHO, emphasized the need for passengers to be tested and monitored for 42 days following potential exposure.
Evacuation Details
Passengers from over 20 countries are being evacuated. Spanish nationals were the first to be transported to a military hospital in Madrid, while Norway dispatched an ambulance plane for its citizens. At least one of the 17 American passengers evacuated has tested positive but remains asymptomatic; U.S. officials stated they will undergo quarantine upon arriving in Omaha, Nebraska.
In France, Health Minister Stephanie Rist confirmed that one of five French travelers developed symptoms while on a flight back to France, and officials have since isolated the group. A Japanese national was transferred to the UK and will be monitored for up to 45 days, while passengers arriving in the UK will be quarantined for 72 hours followed by six weeks of self-isolation.
Additionally, 26 evacuees arrived in Eindhoven, Netherlands, where Dutch nationals will be quarantined at home for six weeks. Other passengers from countries including Germany, Greece, and Argentina are also being transported home or quarantined by local health authorities.
Some passengers had disembarked prior to the ship’s arrival in Tenerife; at least 34 individuals, including those who fell ill, exited the ship by May 2. Among those previously disembarked, medical personnel were dispatched to the British territory of Tristan da Cunha, where a suspected case had been reported.
Origin of the Outbreak
Hantavirus infects humans through exposure to air contaminated with the virus from infected rodents. The recent outbreak is linked to the Andes strain, which primarily exists in rural areas of South America and is known to spread between humans.
Investigations are ongoing to determine where the initial contamination occurred. The first individuals to show symptoms were an elderly Dutch couple, both of whom have since died. Local media have reported their previous visit to a landfill in Ushuaia, Argentina, raising questions about potential exposure to rodent droppings. However, health officials in Ushuaia have stated no hantavirus cases have been recorded in the area since 1996.
There are also unconfirmed reports suggesting that the couple might have been exposed in Chile or other regions of Argentina where the virus is endemic. Health authorities in both countries have clarified that there is no current risk of transmission related to their travels.
As the global health community responds to this outbreak, further investigations are underway to prevent further spread and protect public health.
