Ongoing measles transmission in the United States, fueled by pockets of low MMR vaccination coverage and imported cases from international travel, has driven 2,566 confirmed cases through August 13, 2026—already surpassing the full-year 2025 total of 2,289 and marking the highest annual figure since 1991. CDC data show 38 outbreaks this year, with 94% of cases linked to sustained community spread, primarily among unvaccinated individuals. This trajectory reflects declining herd immunity thresholds in affected areas and ongoing global circulation. Weekly CDC surveillance updates, state health reports, and any shifts in vaccination uptake or public health interventions will determine whether the final 2026 count stabilizes or accelerates further before year-end 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. in 2026?
$7,838,595 Vol.
$7,838,595 Vol.
↑4.5k
55%
↑3k
97%
↑3.5k
93%
↑4k
80%
↑5k
34%
↑7.5k
12%
↑10k
6%
↑12.5k
5%
$7,838,595 Vol.
$7,838,595 Vol.
↑4.5k
55%
↑3k
97%
↑3.5k
93%
↑4k
80%
↑5k
34%
↑7.5k
12%
↑10k
6%
↑12.5k
5%
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: Feb 16, 2026, 11:51 AM 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...Ongoing measles transmission in the United States, fueled by pockets of low MMR vaccination coverage and imported cases from international travel, has driven 2,566 confirmed cases through August 13, 2026—already surpassing the full-year 2025 total of 2,289 and marking the highest annual figure since 1991. CDC data show 38 outbreaks this year, with 94% of cases linked to sustained community spread, primarily among unvaccinated individuals. This trajectory reflects declining herd immunity thresholds in affected areas and ongoing global circulation. Weekly CDC surveillance updates, state health reports, and any shifts in vaccination uptake or public health interventions will determine whether the final 2026 count stabilizes or accelerates further before year-end 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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