Is there a vaccine for hantavirus?

As of May 2026, no hantavirus vaccine has received approval from WHO, FDA, or EMA. South Korea and China have used inactivated hantavirus vaccines domestically (e.g., Hantavax) for HFRS strains (Hantaan, Seoul), but these are not approved internationally and do not protect against the New World HPS strains (Andes, Sin Nombre). Several vaccine candidates targeting Andes and Sin Nombre virus are in early-stage research and Phase 1 trials, but none are expected to reach approval before 2028. The Polymarket question 'Hantavirus vaccine approved in 2026?' currently trades at 2% probability.