New World Screwworm in Texas
Texas has no recent New World Screwworm activity, but 16 alerts have been recorded historically.
Risk Level
🟢 Low
No cases reported in the past 30 days
Cases (30 days)
0
Total Cases
45
Counties Affected
16
Most recent New World Screwworm alert in Texas: Sep 10, 2026
New World Screwworm Alerts in Texas
Presidio, Texas
Sep 10, 2026 · active
1
confirmed
Terrell, Texas
Aug 5, 2026
5
confirmed
Pecos, Texas
Jul 31, 2026
4
confirmed
Brewster, Texas
Jul 30, 2026
4
confirmed
Sutton, Texas
Jul 21, 2026
3
confirmed
Schleicher, Texas
Jul 18, 2026
1
confirmed
Starr, Texas
Jul 17, 2026
1
confirmed
Crockett, Texas
Jul 10, 2026
11
confirmed
Uvalde, Texas
Jun 29, 2026
1
confirmed
Jim Hogg, Texas
Jun 26, 2026
1
confirmed
Medina, Texas
Jun 24, 2026
1
confirmed
Edwards, Texas
Jun 24, 2026
5
confirmed
Zavala, Texas
Jun 11, 2026
3
confirmed
Tom Green, Texas
Jun 11, 2026
1
confirmed
La Salle, Texas
Jun 8, 2026
2
confirmed
Gillespie, Texas
Jun 8, 2026
1
confirmed
About New World Screwworm
A parasitic infestation (myiasis) caused by the larvae of the New World screwworm fly, which lay eggs in the open wounds or mucous membranes of live, warm-blooded animals. Unlike most maggots, screwworm larvae feed on living tissue, producing rapidly enlarging, potentially fatal wounds. Eradicated from the United State…
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