General · Texas behavioral health news
New World Screwworm Frequently Asked Questions
Texas DSHS · By Vivian.Brandt · June 17, 2026
In plain language
The New World screwworm is a type of fly whose larvae feed on the live tissue of warm-blooded animals and humans. While you cannot catch an infestation directly from another person or animal, the flies can lay eggs in open wounds or body openings, leading to painful sores. Texas health officials confirm that the food supply remains safe, as meat and dairy products undergo strict inspections. If you suspect an infestation, you should see a doctor immediately rather than trying to remove the larvae yourself.
AI-generated summary of the source article. Not medical advice.
Key takeaways
- New World screwworm larvae feed on live tissue and cause painful infestations in humans and animals.
- People can protect themselves by keeping wounds covered, using insect repellent, and wearing long-sleeved clothing.
- Common symptoms include feeling movement in a wound, foul odors, and sores that do not heal quickly.
- Healthcare providers should be informed of any recent travel to Central or South America, Mexico, or the Caribbean.
- The Texas food supply remains safe through rigorous daily inspections of meat and dairy production.
- Suspected infestations in pets or livestock should be reported to a veterinarian or the Texas Animal Health Commission.
New World Screwworm Frequently Asked Questions Vivian.Brandt Wed, 06/17/2026 - 09:44 AM New World Screwworm Frequently Asked Questions This page provides information about New World Screwworm Frequently Asked Questions. What is New World screwworm?Despite its name, the New World screwworm is actually a species of fly also known as Cochliomyia hominivorax. NWS larvae feed on live tissues of any warm-blooded animal. When fly larvae get into a wound, they cause myasis, or an infestation of fly larvae.Can I get NWS from an animal or someone who is infested?No, you cannot directly catch NWS myasis from an infested animal or person. However, adult flies can lay eggs on and infest different people living in the same spaceWhat are the symptoms of NWS infestation in humans?NWS infestations are very painful. If you have an NWS infestation, you may see larvae around or in an open wound. They could also be in your nose, eyes, mouth, or other mucous membranes. Tell your healthcare provider of
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