This page lists weekly updates of Screwworm tracking in the US, gathered from USDA, CDC, and various state agencies. Details are presented in text, tables and maps.
Weekly Screwworm Status Update_2026-August-10
Weekly Screwworm Status Update_2026-August-03
Weekly Screwworm Status Update_2026-July-27
Weekly Screwworm Status Update_2026-July-20
Weekly Screwworm Status Update_2026-July-13
Weekly Screwworm Status Update_2026-July-06
Weekly Screwworm Status Update_2026-June-29
Weekly Screwworm Status Update_2026-June-23
Weekly New World Screwworm Status Update_2026-June-15
Weekly New World Screwworm Status Update_2026-June-08
You can access some of this data directly from the USDA website at: USDA APHIS — “Stop Screwworm”