Eighteen Americans were potentially exposed to one of the deadliest viral pathogens that can spread person-to-person. All eighteen are now confirmed healthy. None developed the disease.
The CDC's hantavirus response, which began after an Andes hantavirus outbreak aboard the Dutch expedition cruise ship MV Hondius in April 2026, officially closed on June 24, 2026, after all 18 potentially exposed American passengers completed a 42-day incubation monitoring period without developing any illness.
