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Warming climate is helping the screwworm spread

A flesh-eating parasite called the New World screwworm has spread beyond Texas, and a warming climate may be helping this tropical pest expand its range. See where new cases have been confirmed, why warmer winters make the fly harder to stop and what the outbreak could mean for already record-high beef prices.

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What doctors want you to know about hot weather

Best sunscreen of 2026: Our top 10 picks (tested and reviewed)