Rising U.S. measles cases, already totaling 2,777 confirmed infections as of August 20, 2026—surpassing the full-year 2025 count of 2,289—stem primarily from declining MMR vaccination coverage in pockets of the population and sustained community transmission. CDC data show 94% of 2026 cases linked to outbreaks, mostly among unvaccinated individuals, with 36 new outbreaks reported so far. This marks the highest annual total since 1991, threatening the country's measles elimination status achieved in 2000. Weekly CDC surveillance updates and ongoing state-level reporting will provide the next key data points for traders assessing whether 2026 totals exceed recent highs or trigger further public health interventions.
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. in 2026?
$7,854,228 Vol.
$7,854,228 Vol.
↑4.5k
66%
↑3k
99%
↑3.5k
95%
↑4k
85%
↑5k
48%
↑7.5k
13%
↑10k
6%
↑12.5k
6%
$7,854,228 Vol.
$7,854,228 Vol.
↑4.5k
66%
↑3k
99%
↑3.5k
95%
↑4k
85%
↑5k
48%
↑7.5k
13%
↑10k
6%
↑12.5k
6%
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.
Market Opened: Jun 30, 2026, 2:17 PM ET
Resolver
0x65070BE91...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.
Resolver
0x65070BE91...Rising U.S. measles cases, already totaling 2,777 confirmed infections as of August 20, 2026—surpassing the full-year 2025 count of 2,289—stem primarily from declining MMR vaccination coverage in pockets of the population and sustained community transmission. CDC data show 94% of 2026 cases linked to outbreaks, mostly among unvaccinated individuals, with 36 new outbreaks reported so far. This marks the highest annual total since 1991, threatening the country's measles elimination status achieved in 2000. Weekly CDC surveillance updates and ongoing state-level reporting will provide the next key data points for traders assessing whether 2026 totals exceed recent highs or trigger further public health interventions.
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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