As of August 20, 2026, the CDC has confirmed 2,777 measles cases nationwide this year—already exceeding the full 2025 total of 2,289—with 94% linked to ongoing outbreaks across more than 40 jurisdictions and recent weekly additions reaching 211 cases. The virus’s high basic reproduction number (R0 of 12–18) sustains rapid transmission in under-vaccinated communities, particularly among young children, while surveillance relies on confirmed laboratory reports rather than estimates. Traders should monitor the CDC’s next weekly update expected around August 28 and any new state-level outbreak declarations or vaccination campaigns through August 31, as these directly influence final case counts used for market resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMeasles cases in U.S. by August 31?
2800+
99%
2825+
93%
2850+
91%
$2,390 Vol.
2800+
99%
2825+
93%
2850+
91%
The resolution source for this market will be the CDC Measles (Rubeola) counter 'Total Cases' in 2026 (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.
Market Opened: Aug 24, 2026, 10:08 AM ET
Resolver
0x65070BE91...The resolution source for this market will be the CDC Measles (Rubeola) counter 'Total Cases' in 2026 (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.
Resolver
0x65070BE91...As of August 20, 2026, the CDC has confirmed 2,777 measles cases nationwide this year—already exceeding the full 2025 total of 2,289—with 94% linked to ongoing outbreaks across more than 40 jurisdictions and recent weekly additions reaching 211 cases. The virus’s high basic reproduction number (R0 of 12–18) sustains rapid transmission in under-vaccinated communities, particularly among young children, while surveillance relies on confirmed laboratory reports rather than estimates. Traders should monitor the CDC’s next weekly update expected around August 28 and any new state-level outbreak declarations or vaccination campaigns through August 31, as these directly influence final case counts used for market resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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