Concerns Rise as Flesh-Eating Screwworm Returns to Texas
A flesh-eating screwworm is in the US. How worried should we be?
Usa Today
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The New World screwworm, a flesh-eating parasite once eradicated in the U.S., has resurfaced in Texas, detected in a calf. Authorities have established a quarantine zone and increased surveillance to prevent its spread, which could threaten livestock and public health. Experts advise vigilance but not panic.
- 01The New World screwworm was found in a 3-week-old calf in Texas, marking its first U.S. case in decades.
- 02A quarantine zone of approximately 12 miles has been set up around the detection site to contain the parasite.
- 03The screwworm can infect any warm-blooded animal and is primarily a threat to livestock, though it can also affect pets and humans.
- 04The U.S. previously eradicated this parasite in the 1960s through a sterilization program for male flies.
- 05Experts emphasize the importance of awareness and proactive measures to prevent the spread of the screwworm.
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The New World screwworm, a flesh-eating fly previously eradicated in the U.S., has been detected in Texas, specifically in a 3-week-old calf. This marks the first confirmed case in decades and raises concerns about the potential for re-establishment of the parasite in the U.S. Authorities, including the U.S. Department of Agriculture (USDA), have responded by creating a quarantine zone approximately 12 miles wide around the McAllen Ranch, where the case was identified. Increased surveillance and rapid treatment are underway to prevent further spread, which could impact livestock and the broader food supply. The screwworm poses a threat to any warm-blooded animal, including pets and humans, although the risk to people is low. Experts have noted that while the situation is serious, there is no need for panic. The USDA has previously eradicated the screwworm through a sterilization program and has the means to manage the current outbreak. Climate change and increased travel are cited as factors contributing to the parasite's return. Vigilance and awareness are crucial, and the public is encouraged to report any suspected cases.
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The presence of the screwworm could lead to significant losses for livestock ranchers and affect the food supply chain.
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