MV Hondius Hantavirus Outbreak: Andes Virus on Cruise Ship 2026
Multi-country cluster of Andes hantavirus (ANDV) cases originating on the Dutch cruise ship MV Hondius. First case acquired infection on land in South America, with documented human-to-human transmission aboard ship — only known hantavirus strain with this property. WHO Director-General Tedros led on-scene response in Tenerife; 6+ European/American countries plus Canada repatriating evacuated passengers. Public risk assessed low globally, moderate shipboard.
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Timeline
WHO Disease Outbreak News 2026-DON601 (May 13) consolidates the case count: 11 cases total (8 laboratory-confirmed, 2 probable, 1 inconclusive); 3 deaths (2 confirmed Andes-virus-caused, 1 probable).…
A virological.org preprint (May 2026) and PCR.News (May 12) report that preliminary genomic sequencing of Andes virus isolates from five MV Hondius passengers shows near-identical full-genome…
By May 12, secondary-case map is firming up across continents. SPAIN: a quarantined passenger at Gómez Ulla military hospital in Madrid tested positive for Andes virus (Spain Health Ministry via…
The US Centers for Disease Control and Prevention issued Health Alert Network advisory HAN00528 (May 2026): "2026 Multi-country Hantavirus Cluster Linked to Cruise Ship." The HAN system is CDC's…
After approval from Spanish health authorities, the MV Hondius departed for Tenerife on May 6 with additional medical resources and 147 individuals on board, arriving May 10 (UN News). Disembarkation…
Argentina's Health Ministry, as reported by CNN (May 9) and the Washington Post (opinion, May 13), confirms that the country's 2025-2026 hantavirus season — which began June 2025 — has reached 101…
The New York Post, citing investigative sources (May 9, relayed by Izvestia), identifies Leo Schilperoord — a Dutch ornithologist who observed birds at a landfill in Argentina prior to boarding the…
The MV Hondius — a Dutch-operated expedition cruise ship registered under UK flag — became the index location for a multi-country Andes hantavirus (ANDV) cluster. Per the WHO Disease Outbreak News…
Treatment landscape as of the 2026 outbreak: (1) NO licensed vaccine for any New-World hantavirus (Brocato & Hooper 2019, Viruses; Szabó 2017). (2) NO proven antiviral therapy for HPS — ribavirin…
Ferrés et al. 2024 (Lancet Infectious Diseases) prospectively followed 131 confirmed Andes-virus patients in Chile (2008-2022). Key findings directly applicable to the Hondius outbreak: (1) ANDV RNA…
Pizarro et al. 2019 (Frontiers in Microbiology) — mechanistic paper explaining HOW Andes virus achieves person-to-person transmission. Using immunocytochemistry, multichannel immunofluorescence, and…
Coelho et al. 2024 (medRxiv preprint) report on the most consequential P2P precedent for the Hondius cluster: in November 2018, an Andes-virus outbreak began in Epuyén (population ~3,000) in Chubut…
Foundational literature establishing Andes virus and its unique person-to-person transmissibility — the analytical framework for the 2026 Hondius event. (1) Enría et al. 1995 (Medicina, Buenos Aires)…