Patient Zero identified: Dutch ornithologist Leo Schilperoord, infected at Argentinian landfill before MV Hondius boarding

Per Newsweek (May 9-10): 'Patient Zero identified in hantavirus cruise ship outbreak'. Dutch ornithologist Leo Schilperoord, 70, and his wife Mirjam, 69, identified as the suspected index case. Argentine health ministry report: 'four-month road trip between 27 November 2025 and 1 April 2026, spanning Chile, Uruguay, and Argentina' before boarding MV Hondius on April 1. Investigators believe the couple 'inhaled aerosolized particles from the droppings or urine of long-tailed pygmy rice rats carrying the Andes strain' during a bird-watching outing at a contaminated landfill in 'the city at the end of the world' (Ushuaia). Argentine National Ministry of Health and Malbrán Institute 'capturing and testing rodents along the route the Dutch passenger travelled' plus contact tracing. Corroborated by Sunday Guardian Live + Newsweek (Cred Tier 2); originally surfaced via tabloid (Gateway Pundit) but Tier-2 corroboration satisfies §1 corroboration-search.

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Newsweek

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hantavirus