The unprecedented 2026 cyclosporiasis season, with 17,180 laboratory-confirmed domestically acquired U.S. cases reported to CDC through August 24—versus just 1,180 by the same date in 2025—has been propelled by a large multistate outbreak tied to processed iceberg lettuce from central Mexico plus at least six additional clusters under joint CDC-FDA investigation. Most illnesses show median onset in early July, with recent data indicating a slowing incidence in hard-hit states like Michigan. Cyclospora transmission via contaminated fresh produce peaks in warmer months; the official surveillance window closes August 31, after which final case counts and any remaining laboratory confirmations will determine market resolution amid known reporting lags and underdiagnosis.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedCyclosporiasis cases in U.S. by August 31?
$10,668 Vol.
20,000+
10%
$10,668 Vol.
20,000+
10%
The resolution source for this market will be the CDC Surveillance of Cyclosporiasis page’s “U.S. cases reported to CDC” count (see: https://www.cdc.gov/cyclosporiasis/php/surveillance/index.html) at the resolution time. If the counter becomes unavailable, another credible source will be used.
Note: Only cases reported by the CDC as confirmed domestically acquired cases of cyclosporiasis will qualify, regardless of reports from U.S. State agencies or other sources. Travel-associated cases acquired outside the United States will not qualify.
Market Opened: Jul 27, 2026, 11:16 PM ET
Resolver
0x65070BE91...The resolution source for this market will be the CDC Surveillance of Cyclosporiasis page’s “U.S. cases reported to CDC” count (see: https://www.cdc.gov/cyclosporiasis/php/surveillance/index.html) at the resolution time. If the counter becomes unavailable, another credible source will be used.
Note: Only cases reported by the CDC as confirmed domestically acquired cases of cyclosporiasis will qualify, regardless of reports from U.S. State agencies or other sources. Travel-associated cases acquired outside the United States will not qualify.
Resolver
0x65070BE91...The unprecedented 2026 cyclosporiasis season, with 17,180 laboratory-confirmed domestically acquired U.S. cases reported to CDC through August 24—versus just 1,180 by the same date in 2025—has been propelled by a large multistate outbreak tied to processed iceberg lettuce from central Mexico plus at least six additional clusters under joint CDC-FDA investigation. Most illnesses show median onset in early July, with recent data indicating a slowing incidence in hard-hit states like Michigan. Cyclospora transmission via contaminated fresh produce peaks in warmer months; the official surveillance window closes August 31, after which final case counts and any remaining laboratory confirmations will determine market resolution amid known reporting lags and underdiagnosis.
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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