A Flesh-Eating Cattle Parasite Is Spreading in Texas as New Far-Flung Screwworm Cases Are Found

So far, its reappearance hasn’t greatly affected beef prices already at near-record levels.

Jeffrey Collins
Jun 8, 2026
An adult New World screwworm fly sits in this undated photo.
An adult New World screwworm fly sits in this undated photo.
Denise Bonilla/U.S. Department of Agriculture via AP
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