New World Screwworm Numbers Increasing in Mexico
- ZISK
- 9 hours ago
- 1 min read

Cases of New World Screwworm continue to increase in Mexico. According to Reuters, Mexico has recorded 5,086 cases of flesh-eating screwworm in animals as of Aug. 17, a 53% jump from the number of cases reported in July. The Reuters refers to data from the Mexican government.
The updated numbers, which have not been previously reported to the public, showed 649 currently active cases.
“That’s absolutely concerning,” says Neal Wilkins, CEO of conservation and cattle group East Foundation. “Having a 50% increase in month-over-month numbers, particularly in the extreme heat, means they haven’t gotten it under control.”
By Angie Stump Denton
Updated August 29, 2025 08:05 AM
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