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University of Kentucky

Cochliomyia hominivorax, the New World screw-worm fly, or screw-worm for short, is a species of parasitic fly that is well known for the way in which its larvae (maggots) eat the living tissue
New World Screwworm Threat
October 24, 2025
⎯ Equine Disease Quarterly
The New World screwworm poses an increasing threat to horses in the U.S. as more cases are reported in Mexico.
NSC horse grazing green grass
Increases in Forage NSC Can Affect ID and Non-ID Horses
August 26, 2025
⎯ Kimberly S. Brown
Be cautious when grazing horses on fresh forage that is high in non-structural carbohydrates, as it can affect insulin.
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