No new pandemic has emerged in 2026, supporting the market's 94.5% implied probability for that outcome as of late August. Official WHO and CDC surveillance shows only localized or low-level activity, including a mild summer COVID-19 wave with very low emergency visits, contained Ebola Bundibugyo outbreaks in parts of Africa, and U.S. measles clusters that remain regionally limited. These patterns align with endemic circulation rather than novel pathogen emergence capable of sustained global transmission. Traders' strong consensus reflects the absence of a Public Health Emergency of International Concern declaration and robust background immunity. That said, zoonotic risks such as H5N1 influenza evolution or an unknown Disease X could still trigger escalation if surveillance detects rapid human-to-human spread before year-end.