The contained 2026 Andes virus outbreak aboard the MV Hondius cruise ship, limited to 13 confirmed cases and three deaths, underpins the 98.6% market-implied probability against a hantavirus pandemic. Primary rodent-borne transmission via aerosolized excreta, combined with Andes virus's requirement for prolonged close contact in human-to-human spread, has prevented sustained chains, as confirmed by WHO and CDC contact tracing across 33 countries with no community transmission detected. Official surveillance through June 2026 showed all quarantines completed without further spread, consistent with historical patterns of localized hantavirus pulmonary syndrome rather than pandemic potential. While a mutation enhancing airborne transmission or undetected spillover could theoretically alter outcomes, current epidemiological data and model consensus indicate such scenarios remain highly improbable before year-end.