Flesh-eating parasite just 70 miles from US; check pets, Texas officials say

Residents in Texas are being urged to inspect their pets and livestock closely following alarming reports from Mexico regarding the flesh-eating New World Screwworm (NWS). This dangerous parasitic fly was confirmed to be less than 70 miles from the U.S. border, prompting officials to recommend the immediate use of pesticide bait to safeguard against potential infestations. The New World Screwworm is notorious for its brutal impact on warm-blooded animals, as it lays hundreds of eggs in any small openings or wounds. The larvae, which resemble screws, burrow into the flesh of the host, creating horrific wounds that can be fatal, particularly for livestock and wildlife. Historically, the NWS was a significant threat to the U.S. livestock industry until it was eradicated in the 1960s through rigorous control measures, including the release of sterile male flies to disrupt breeding. By the 1980s, it was eliminated from Mexico as well, and by 2006, Central America had also declared it eradicated. However, the situation shifted in 2022 when the parasite began to encroach back into the region, leading to the recent detection of a case in Veracruz, which is 370 miles from the U.S. border. Most concerning is the recent confirmation from Mexico’s National Service of Agro-Alimentary Health, Safety, and Quality (SENASICA), which reported the closest NWS case in Sabinas Hidalgo, Nuevo León, just a stone's throw from the border. This resurgence of the NWS underscores the need for vigilance among residents and local authorities alike to prevent a potential outbreak in the U.S.