Trader consensus on a 98% probability of no hantavirus pandemic in 2026 reflects the virus's limited transmissibility and the successful containment of the year's most notable outbreak. Andes virus, the only hantavirus strain known for human-to-human spread via close respiratory contact, caused a cluster of 13 cases and three deaths aboard the MV Hondius cruise ship in May, but WHO-led contact tracing across 33 countries ended transmission by early July with no community spread. Most hantavirus infections remain zoonotic from rodent reservoirs, producing localized Hantavirus Pulmonary Syndrome rather than sustained epidemics. Official surveillance through October shows no evidence of exponential growth or pandemic thresholds met, though continued monitoring of rodent populations and rare person-to-person clusters remains relevant for any late-year shifts.