Mexico notifies US of New World screwworm (NWS) detection

Published 2024년 11월 25일

Tridge summary

A positive detection of New World screwworm (NWS) in a cow in Chiapas, Mexico, has prompted the United States Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) to restrict the importation of animal commodities from Mexico. The pest, which can cause severe damage to warm-blooded animals by burrowing into their flesh, was first detected in Central America in 2006 but has recently spread northward. APHIS is working with partners in Mexico and Central America to contain the spread of NWS into the United States and is asking producers along the southern border to report any signs of the pest.

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Original content

On November 22, 2024, the Chief Veterinary Officer of Mexico notified the United States Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) of a positive detection of New World screwworm (NWS) in Mexico. The NWS was found in a cow in the southern Mexico state of Chiapas, at an inspection checkpoint close to the border with Guatemala. NWS are fly larvae that infest living tissue of warm-blooded animals, causing infection. NWS (Cochliomyia hominivorax) is a devastating pest. When NWS fly larvae (maggots) burrow into the flesh of a living animal, they cause serious, often deadly damage to the animal. NWS can infest livestock, pets, wildlife, occasionally birds, and in rare cases, people. “Given the northward movement of NWS, APHIS has in recent months stepped up its efforts in Central America to partner with impacted countries to push this pest out of newly affected areas,” said Dr. Rosemary Sifford, Chief Veterinary Officer of the United States. “With this ...

Source: Thepoultrysite