Measles prediction markets on Polymarket track public health forecasts for disease spread across the United States. These markets aggregate real-time probability assessments for measles case counts, outbreak trajectories, and epidemiological outcomes throughout 2026. Common forecasting questions include: Will there be at least 5,000 measles cases in the U.S. in 2026? Will case counts reach 2,200 by April 30? How will the outbreak evolve through spring and summer? These markets help predict disease trajectories by synthesizing available epidemiological data and surveillance updates. Measles case forecasts are shaped by multiple factors: vaccination coverage rates and immunization initiatives, the speed of outbreak response and public health interventions, variant transmissibility and disease characteristics, population immunity levels in different regions, and travel patterns that affect disease spread. Markets also respond to emerging surveillance data, CDC announcements, and epidemiological research that informs trajectory predictions. On Polymarket, you can explore measles forecasts across different timeframes and case thresholds. Whether analyzing peak case numbers, tracking seasonal trends, or assessing intervention effectiveness, these markets provide a dynamic view of public health forecasting. Track how probability assessments shift as new epidemiological data emerges throughout the year.