A parasitic New World screwworm fly, known for consuming human tissue and laying eggs in open wounds, has appeared in Nuevo León, Mexico, approximately 90 miles from the US border.
Imminent Threat to Texas Livestock
Texas Agriculture Commissioner Sid Miller declares the screwworm presence an “imminent threat” to the state’s livestock industry and food supply. He urges heightened vigilance to prevent further spread.
Spread from South America
This fly, commonly found in South America and the Caribbean, has moved northward through Central America into Mexico since 2023. Infestations cause severe, potentially deadly infections in humans and animals as larvae devour living flesh.
US Efforts to Contain the Pest
The US Department of Agriculture ramps up production of sterile flies and deploys surveillance teams. Despite these measures, containment efforts face ongoing challenges.
