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Measles cases in U.S. on December 31?
Foretrace AI research
Understand the odds. Examine the reasoning.
Polymarket shows market prices. Foretrace adds AI probability estimates, opposing evidence and a price-dependent outcome or pass decision for each open market.
View a sample AI report No open markets in this event. Closed markets retain historical data.
24h volumeUnavailable
Total volume$49.2K
LiquidityUnavailable
Event end date · UTCDec 31, 2025
Price history
Market probabilityLoading price history…
Polymarket · UTC
Sampled market observations, not AI forecasts. Lines connect available observations. Legend values are current provider quotes; chart points may be older.
Outcomes & resolution rules
8 marketsThese are market-implied probabilities, not AI forecasts. A displayed quote may differ from the price available for your order.
<1550ClosedMarket odds0%
Will there be fewer than 1550 measles cases in the U.S. on December 31?
Yes0%Polymarket estimate
No100%Polymarket estimate
- Liquidity
- Unavailable
- Deadline · UTC
- Dec 31, 2025
- Yes bid / ask
- — / 0.1¢
- Trading fees
- Not flagged by provider
Closed market · historical data
This market is closed. Its historical data remains available.
How research worksResolution rules
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.