The unprecedented surge in domestically acquired cyclosporiasis cases, already at 15,716 laboratory-confirmed reports since May 1 with 828 hospitalizations and two deaths as of August 17, stems primarily from a large multistate outbreak tied to processed iceberg lettuce from central Mexico. This far exceeds the 1,180 cases recorded for the full May–August 31 period in 2025, driven by seasonal transmission of the Cyclospora cayetanensis parasite via contaminated fresh produce during peak summer months. CDC surveillance shows median illness onset in early July, with ongoing investigations of additional clusters and reporting lags that could add cases through the end of the month. Traders monitor weekly CDC updates and any late-August model refinements for final tallies by the August 31 cutoff.
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?
20,000+
4%
$9,222 Vol.
20,000+
4%
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 surge in domestically acquired cyclosporiasis cases, already at 15,716 laboratory-confirmed reports since May 1 with 828 hospitalizations and two deaths as of August 17, stems primarily from a large multistate outbreak tied to processed iceberg lettuce from central Mexico. This far exceeds the 1,180 cases recorded for the full May–August 31 period in 2025, driven by seasonal transmission of the Cyclospora cayetanensis parasite via contaminated fresh produce during peak summer months. CDC surveillance shows median illness onset in early July, with ongoing investigations of additional clusters and reporting lags that could add cases through the end of the month. Traders monitor weekly CDC updates and any late-August model refinements for final tallies by the August 31 cutoff.
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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