# Sheinbaum Praises U.S.-Mexico Sterile Fly Initiative Against Screwworm

Mexico's government and the United States have launched coordinated operations at a sterile insect facility in Chiapas state to combat the New World screwworm, a parasitic pest that infects livestock and humans. Mexican President Claudia Sheinbaum praised the bilateral effort following months of diplomatic negotiations to establish the program.

The screwworm causes severe tissue damage in animals and humans by burrowing into flesh wounds. The pest poses agricultural and public health threats across North America. The joint initiative deploys sterile male flies that mate with wild females, preventing reproduction and gradually eliminating wild populations. This biological control method has proven effective in prior eradication campaigns.

The Chiapas facility represents the first major operational step after extended negotiations between the two governments. The plant will produce and release sterilized flies across affected regions, requiring sustained coordination between U.S. and Mexican agricultural and health authorities.

The screwworm has resurged in recent years, particularly in Mexico. Ranchers and farmers reported infestations that threatened livestock productivity and caused economic losses. The pest also poses zoonotic risks, affecting humans through wound contamination. Previous campaigns in Central America and parts of the southern United States had successfully suppressed or eliminated screwworm populations using similar sterile insect techniques.

This bilateral program operates under agricultural cooperation frameworks between the nations and involves multiple agencies including Mexico's agricultural ministry and U.S. Department of Agriculture representatives. The initiative requires ongoing funding, technical expertise, and diplomatic coordination to maintain operations and monitor effectiveness.

The screwworm eradication effort reflects broader U.S.-Mexico cooperation on transnational agricultural and health threats. Success depends on sustained political support and resource commitment from both governments. Livestock industries throughout North America stand to benefit