How the U.S. and Mexico Are Fighting Deadly Flesh-Eating Screwworms

The American and Mexican governments are exploring “all options” to battle a deadly parasite threatening cattle and wildlife.

Cattle from Mexico crossing the border into the United States.Credit...Jose Luis Gonzalez/Reuters

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By Linda Qiu and Alexa Robles-Gil

Linda Qiu covers the Agriculture Department and has previously reported on avian flu and animal agriculture. Alexa Robles-Gil covers science and biology.