Current surveillance by WHO and CDC shows no novel pathogen exhibiting sustained global human-to-human transmission that meets formal pandemic criteria, supporting the 94.5% market-implied probability against a 2026 declaration. Regional Ebola Bundibugyo outbreaks in the DRC and Uganda, designated a Public Health Emergency of International Concern earlier this year, remain contained due to direct-contact requirements and rapid response measures, while COVID-19 circulates endemically without explosive growth. Elevated activity in vaccine-preventable diseases like measles stems from localized immunity gaps rather than pandemic-level transmissibility. Traders note that realistic shifts could arise from undetected zoonotic spillover or viral mutations enabling efficient airborne spread before year-end monitoring updates.