As of March 26, 2026, the Centers for Disease Control and Prevention (CDC) has confirmed 1,575 measles cases in the United States this year across 32 jurisdictions, with 94% outbreak-associated, including many continuing from 2025 clusters in states like South Carolina, Texas, and Utah. Nearly all cases (92%) involve unvaccinated or unknown-status individuals, reflecting declining MMR vaccine coverage—92.5% among kindergarteners in 2024-2025, below the 95% herd immunity threshold for this highly contagious virus (R0 of 12-18). Five percent of cases required hospitalization, with no fatalities reported. Global outbreaks fuel importations, sustaining transmission in under-vaccinated communities; weekly CDC updates will track containment via public health responses and vaccination drives, critical for projecting full-year totals amid ongoing uncertainty.
Experimental AI-generated summary referencing Polymarket data · UpdatedMeasles cases in U.S. in 2026?
Measles cases in U.S. in 2026?
$7,494,502 Vol.
$7,494,502 Vol.
↑2k
98%
↑3k
83%
↑4k
65%
↑5k
50%
↑7.5k
22%
↑10k
13%
↑12.5k
11%
$7,494,502 Vol.
$7,494,502 Vol.
↑2k
98%
↑3k
83%
↑4k
65%
↑5k
50%
↑7.5k
22%
↑10k
13%
↑12.5k
11%
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: Dec 1, 2025, 12:56 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...As of March 26, 2026, the Centers for Disease Control and Prevention (CDC) has confirmed 1,575 measles cases in the United States this year across 32 jurisdictions, with 94% outbreak-associated, including many continuing from 2025 clusters in states like South Carolina, Texas, and Utah. Nearly all cases (92%) involve unvaccinated or unknown-status individuals, reflecting declining MMR vaccine coverage—92.5% among kindergarteners in 2024-2025, below the 95% herd immunity threshold for this highly contagious virus (R0 of 12-18). Five percent of cases required hospitalization, with no fatalities reported. Global outbreaks fuel importations, sustaining transmission in under-vaccinated communities; weekly CDC updates will track containment via public health responses and vaccination drives, critical for projecting full-year totals amid ongoing uncertainty.
Experimental AI-generated summary referencing Polymarket data · Updated
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