Archive · 23 Sep 2025

Mexico: Screwworm Case Contained Near U.S. Border

Mexico: Screwworm Case Contained Near U.S. Border

A case of screwworm, a parasite affecting livestock, has been found in Mexico near the U.S. border.

Mexican officials acted quickly to contain the issue.

The U.S. has mostly closed its border to Mexican cattle imports.

The USDA is analyzing the situation and might release sterile flies.

No screwworm flies have been found in northern Mexico.

Early detection suggests no major risks.

This parasite is a concern, especially for the U.S. cattle industry.

U.S. officials confirmed a human screwworm infection in Maryland.

Sources