USDA Investigates Possible New World Screwworm Case in South Texas
New World Screwworm: 5 things about flesh-eating fly as USDA flags possible case in South Texas

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The USDA is investigating a potential case of New World Screwworm (NWS) in South Texas, which poses a threat to livestock. The parasitic fly, known for feeding on the flesh of warm-blooded animals, could significantly impact cattle futures and farmers' livelihoods.
- 01The USDA has flagged a possible case of New World Screwworm in South Texas, with samples sent for confirmatory testing.
- 02New World Screwworm (Cochliomyia hominivorax) lays eggs in body openings, leading to maggot infestations that can cause severe wounds.
- 03Symptoms of NWS infestation include visible maggots, worsening sores, bleeding, and foul odors.
- 04Prevention strategies include using insect repellents and keeping wounds clean, while treatment may require surgical intervention.
- 05Concerns about NWS could affect cattle futures, as market players fear reduced beef demand amid potential infestations.
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The US Department of Agriculture (USDA) has identified a possible case of New World Screwworm (NWS) in South Texas, with samples currently being tested at the National Veterinary Services Laboratories in Ames, Iowa. Although no official confirmation has been made, reports suggest a 'presumptive positive' case. Oklahoma Representative Frank Lucas expressed concern over the potential impact on livestock ranchers, urging the government to utilize all available resources to mitigate the threat. New World Screwworm, a parasitic fly, feeds on the flesh of warm-blooded animals, laying eggs in wounds and body openings. Infestations can result in severe, foul-smelling wounds, with symptoms including visible maggots and bleeding sores. Prevention methods involve using insect repellents and maintaining hygiene. The potential presence of NWS could significantly affect cattle futures, as consumer demand for beef may decline due to health concerns, although it could also lead to a long-term reduction in cattle supply.
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The potential presence of NWS poses a serious risk to livestock health and could disrupt local farming operations.
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