New World Screwworm case tracker

U.S. county-level cases, map, confirmation timeline, and animal species summaries from USDA APHIS data.

Evolving situation: This page summarizes data extracted from the public USDA APHIS dashboard for situational awareness and education. Refer to USDA APHIS and state animal health authorities for official guidance. Data last refreshed from APHIS: Jun 12, 2026.

Situation at a glance

USDA-reported detections

11 Animal cases 11 active
6 Counties 2 states
11 Domestic 0 wildlife or feral
0 Fly traps with detected NWS flies
First confirmed case Jun 3, 2026
Latest confirmation Jun 11, 2026
Data source USDA APHIS NWS Page

County geography

Detections by county

County choropleth
Jun 11, 2026 11 cumulative cases
1 case 2 cases 3+ cases Not shown for selected date/species

Transmission pathway

New World Screwworm lifecycle

Confirmation timeline

The most recent detections were confirmed on Jun 11, 2026: 4 new cases, including 3 cattle and 1 goat.

CattleDogGoats
1 2 3 4 Jun 3, 2026: 1 Cattle Jun 3 Jun 4 Jun 5, 2026: 1 Cattle Jun 5 Jun 6 Jun 7, 2026: 1 Cattle Jun 7, 2026: 1 Dog Jun 7 Jun 8, 2026: 1 Cattle Jun 8, 2026: 1 Goats Jun 8 Jun 9, 2026: 1 Cattle Jun 9 Jun 10 Jun 11, 2026: 3 Cattle Jun 11, 2026: 1 Goats Jun 11 Confirmation date Cases

County burden

Case totals

CattleDogGoats

Texas

10 cases
Edwards
Zavala
La Salle
Gillespie
Tom Green

New Mexico

1 cases
Lea

Line list

Confirmed animal cases

Confirmed date State County Case type Animal type Species Status
Jun 11, 2026 Texas Edwards Domestic Domestic Cattle Active
Jun 11, 2026 Texas Edwards Domestic Domestic Goats Active
Jun 11, 2026 Texas Tom Green Domestic Domestic Cattle Active
Jun 11, 2026 Texas Zavala Domestic Domestic Cattle Active
Jun 9, 2026 Texas Edwards Domestic Domestic Cattle Active
Jun 8, 2026 Texas Gillespie Domestic Domestic Goats Active
Jun 8, 2026 Texas La Salle Domestic Domestic Cattle Active
Jun 7, 2026 New Mexico Lea Domestic Domestic Dog Active
Jun 7, 2026 Texas La Salle Domestic Domestic Cattle Active
Jun 5, 2026 Texas Zavala Domestic Domestic Cattle Active
Jun 3, 2026 Texas Zavala Domestic Domestic Cattle Active