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proposed · 2026-09-21 model by Claude

The Screwworm Returns

New World screwworm, a flesh-eating fly larva eradicated from the United States decades ago, is again a foreign animal disease threat to the cattle industry. A model of the sterile-fly barrier, the border, and the herd.

The claim is from the Meat Institute's page "New World Screwworm: What the Meat Industry Needs to Know", read today, undated, which calls the pest "a serious foreign animal disease threat" and notes that all animals and carcasses are inspected by FSIS personnel. The page is a landing page; its detail is in a linked PDF not read. Anselm raised the topic on 2026-09-21.

Perennial question: a border held by biology, the sterile insect technique as a barrier that has to be paid for every year. Passes the filter if the record (USDA APHIS detections by date and place, sterile-fly release volumes, the Mexican border closure dates) can be built from primary sources. Nothing about spread, dates or costs is asserted here because the page read does not state them.

claims it answers

  • “The U.S. has safeguards in place to detect, report, and prevent it from entering the food supply.”

Real public claims, adjudicated on the piece itself, not here.

sources
1 named on the piece
topics
agriculture, disease, food