North Carolina adds animal rules as screwworm returns to U.S.

For the first time in decades, screwworms have been confirmed in the U.S. Southwest. Now, NC officials are working to stop the spread.
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What to look out for as screwworm cases spread

SIOUX FALLS, S.D. (KELO) – The US Department of Agriculture is confirming three new cases of animals infested by the New World screwworm fly — a calf and a goat in Texas, as well as a dog in New ...