New World Screwworm case tracker
U.S. county-level cases, map, confirmation timeline, and animal species summaries from USDA APHIS data.
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
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
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 |