Three more cases of the New World screwworm have been confirmed, including one outside the main cluster in Texas, demonstrating the difficulty of stopping a resurgent pest that could devastate the nation's cattle industry, the U.S. Department of Agriculture announced.
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Two more cases of the New World screwworm have been confirmed hundreds of miles apart in Texas, demonstrating the difficulty of stopping the spread of a pest that could potentially devastate the natio...
