Strong global disease surveillance by the World Health Organization and CDC, combined with no active outbreaks meeting pandemic criteria, underpins the 87.5% market-implied odds against a new pandemic before 2028. Current confirmed case trends for potential zoonotic threats remain localized without sustained human-to-human transmission, reflecting improved post-2020 monitoring systems and lower baseline emergence rates compared to historical precedents like 2009 or 2020. Traders appear to weigh the low near-term probability of novel strains achieving widespread global spread, given ongoing epidemiological data showing contained clusters and effective public health responses. Regular WHO situation reports and genomic surveillance updates through 2027 will provide key signals that could shift consensus if unexpected variants or spillovers emerge.