Enhanced global surveillance, rapid response infrastructure, and the absence of any pathogen showing sustained human-to-human transmission underpin the 87.5% market-implied odds against a new pandemic before 2028. As of October 2026, localized outbreaks such as Ebola in the Democratic Republic of the Congo and resurgent measles or mpox remain contained without meeting WHO pandemic criteria, while post-COVID tools—including the adopted Pandemic Agreement, International Health Regulations amendments, and the WHO Hub for Epidemic Intelligence—have strengthened early detection and containment. Historical patterns confirm pandemics are infrequent events requiring specific convergence of transmissibility, mobility, and susceptibility factors rarely aligned in short windows. Traders appear to weigh these barriers and preparedness gains heavily against longer-term risks like climate-driven vector shifts or antimicrobial resistance.