Recent detections of New World screwworm (Cochliomyia hominivorax) since the June 3, 2026, index case in a Texas calf have remained concentrated in Texas livestock, with one confirmed dog case in New Mexico but no verified livestock infestations beyond state lines as of August 2026. USDA APHIS and state partners have documented roughly 45 total U.S. animal cases through enhanced trapping, drone surveillance, and wound inspections, linking the outbreak to northward spread from Mexico. The sterile insect technique—releasing millions of irradiated males weekly—remains the primary containment tool, supported by 20-km quarantines, movement restrictions, and wildlife monitoring. Key upcoming factors include phased livestock import port reopenings, expanded sterile fly production capacity later in 2026, and ongoing epidemiological investigations that could confirm or rule out additional spread. Trader focus centers on surveillance cadence and any new livestock positives outside Texas before resolution.