{"id":4402,"date":"2026-06-13T14:31:09","date_gmt":"2026-06-13T14:31:09","guid":{"rendered":"https:\/\/houstonmovingjournal.com\/?p=4402"},"modified":"2026-06-13T14:31:09","modified_gmt":"2026-06-13T14:31:09","slug":"new-world-screwworm-cases-in-texas-rise-to-10-new-quarantine-zones-established","status":"publish","type":"post","link":"https:\/\/houstonmovingjournal.com\/?p=4402","title":{"rendered":"New World screwworm cases in Texas rise to 10, new quarantine zones established"},"content":{"rendered":"
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Federal officials said 10 cases of New World screwworm have been detected in Texas as of Saturday as state officials add new quarantine zones.<\/p>

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The additional quarantine zones from the Texas Animal Health Commission come after the screwworm was found in Tom Green County.<\/p>

Officials on Thursday created a fourth zone when a goat in Edwards County was confirmed to have been infested.<\/p>

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New World screwworm in Texas<\/h2>

The U.S. Department of Agriculture has identified 10 cases of New World screwworm in Texas since June 3. Cases have been found in Edwards, Tom Green, Zavala, Gillespie and La Salle counties. The pests have been found in cattle and goats.<\/p>

Officials initially reported an additional case involving a dog in Andrews County on June 8. However, after further epidemiological investigation, authorities determined the animal lives in Lea County, New Mexico, and the case was reclassified as New Mexico’s first confirmed New World screwworm infection.<\/p>

The veterinarian who submitted samples from the dog is based in Texas, officials said. Early reports indicated the dog had recently traveled to Mexico.<\/p>

The Texas Parks and Wildlife Department said updates will be provided as additional cases are confirmed. The agency has established a public information page and said situation reports will be updated daily when new detections occur.<\/p>

5 quarantine zones established in Texas<\/h2>

According to TAHC, five areas of the state have been designated as “infested zones” and include Coke, Edwards, Gillespie, Kerr, Kimble, La Salle, Sutton, Tom Green, Uvalde, Val Verde, Webb and Zavala counties. A quarantine is in place for those areas and warm-blooded animals cannot leave an affected area without authorization.<\/p>

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TAHC infested and surveillance zones as of June 13, 2026<\/span> <\/p> <\/div><\/div>

View the interactive map here: <\/strong>Interactive Map of NWS Zones<\/strong><\/p>

What is New World Screwworm?<\/strong><\/h2>

The New World screwworm is considered one of the most devastating livestock and wildlife pests in history.<\/p>

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The insect gets its name because it\u2019s only found in the Americas.<\/p>

It lays its eggs in the open wounds of animals, and its larvae become parasites. Unlike common fly larvae, screwworm maggots burrow into and feed exclusively on the living flesh of warm-blooded animals, causing severe injury, massive economic loss, and death if left untreated.<\/p>

While rare, they can also infect humans.<\/p>

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