Recent detections of New World screwworm (Cochliomyia hominivorax) since the first U.S. confirmation on June 3, 2026, in a Zavala County, Texas calf have driven trader focus on northward spread from Mexico. USDA APHIS reports at least eight Texas cases in cattle and goats by mid-June, plus one dog case in Lea County, New Mexico, though no livestock infestations outside Texas have been verified. Ongoing sterile fly releases from facilities like Moore Air Base, 20 km quarantine zones, and expanded surveillance in border states reflect containment efforts amid the parasite’s wound-infesting life cycle. Key upcoming factors include weekly USDA case updates and model-informed dispersal adjustments that could shift odds if new livestock detections emerge beyond Texas.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedConfirmed US Screwworm case in Livestock beyond Texas by...

June 30
44%

August 30
56%

October 31
41%

December 31
50%
$677 Vol.

June 30
44%

August 30
56%

October 31
41%

December 31
50%
Any laboratory-confirmed screwworm infection identified within a U.S. state other than Texas will qualify, regardless of where exposure or symptom onset occurred.
The primary resolution source for this market will be official government information (e.g., the CDC or USDA); however, an overwhelming consensus of credible reporting will also suffice.
Market Opened: Jun 9, 2026, 10:17 PM ET
Resolver
0x65070BE91...Any laboratory-confirmed screwworm infection identified within a U.S. state other than Texas will qualify, regardless of where exposure or symptom onset occurred.
The primary resolution source for this market will be official government information (e.g., the CDC or USDA); however, an overwhelming consensus of credible reporting will also suffice.
Resolver
0x65070BE91...Recent detections of New World screwworm (Cochliomyia hominivorax) since the first U.S. confirmation on June 3, 2026, in a Zavala County, Texas calf have driven trader focus on northward spread from Mexico. USDA APHIS reports at least eight Texas cases in cattle and goats by mid-June, plus one dog case in Lea County, New Mexico, though no livestock infestations outside Texas have been verified. Ongoing sterile fly releases from facilities like Moore Air Base, 20 km quarantine zones, and expanded surveillance in border states reflect containment efforts amid the parasite’s wound-infesting life cycle. Key upcoming factors include weekly USDA case updates and model-informed dispersal adjustments that could shift odds if new livestock detections emerge beyond Texas.
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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