Updated
Updated · The Associated Press · Jun 8
USDA Confirms 2 More Texas Screwworm Cases, Lifting Total to 4 as Eradication Plan Lags
Updated
Updated · The Associated Press · Jun 8

USDA Confirms 2 More Texas Screwworm Cases, Lifting Total to 4 as Eradication Plan Lags

3 articles · Updated · The Associated Press · Jun 8

Summary

  • Four confirmed Texas screwworm cases are now on the books after USDA identified a calf in La Salle County and a dog in Andrews County, hundreds of miles apart.
  • USDA said the flesh-eating parasite is being sampled and targeted for eradication, but experts say the main long-term fix—releasing sterile male flies—is still months away.
  • Canada already halted livestock imports from Texas, while federal officials said the infected dog had recently been in Mexico, underscoring cross-border transmission risks.
  • Texas Agriculture Commissioner Sid Miller said the federal response is too slow and pushed a poison-bait approach, which USDA and other experts say is unproven and could harm other animals, insects and humans.
  • The outbreak revives a pest eliminated from the U.S. in the 1960s and threatens cattle producers during summer, though officials say a handful of new detections would not necessarily mean rapid spread.

Insights

With cattle herds at a 75-year low, will this parasite outbreak cause an irreversible crisis for America's beef supply?
What was the rationale behind defunding a key biosecurity program just before this flesh-eating parasite's return?
Can millions of lab-grown sterile flies stop a parasite that decades of work had successfully eradicated?

Texas Faces $1.8 Billion Threat: 2026 Screwworm Outbreak Escalates, Imperiling Cattle Industry and Food Supply

Overview

As of June 8, 2026, Texas faces a rapidly escalating outbreak of New World screwworm, with four confirmed cases across at least three counties and infections found in both livestock and pets. The outbreak has spread over 300 miles from the original detection zone, making containment more challenging. In response, federal and state agencies have formed a unified Incident Command Team to coordinate immediate actions. These efforts include strict quarantines, movement controls, and the release of sterile flies to stop the pest’s reproduction, aiming to control the outbreak’s growing scope and protect animal and public health.

...