Will there be fewer than 1550 measles cases in the U.S. on December 31?

This market will resolve according to the number of confirmed cases of Measles (Rubeola) in humans in the territory of the United States of America in 2025, according to the CDC case counter on December 31, 2025, 11:59 PM ET. The resolution source for this market will be the CDC Measles (Rubeola) counter (see: https://www.cdc.gov/measles/data-research/index.html) at the resolution time. If the counter becomes unavailable, another credible source will be used. Note: Only cases reported by the CDC Measles (Rubeola) counter will qualify, regardless of reports from U.S. State agencies or other sources.