Sonora Confirms 1st Screwworm Case in Cow as US Plans Border Reopening in 5 Days
Updated
Updated · KJZZ · Aug 19
Sonora Confirms 1st Screwworm Case in Cow as US Plans Border Reopening in 5 Days
3 articles · Updated · KJZZ · Aug 19
Summary
Sonora reported its first New World screwworm case in a cow in the state's south, the first detection there since the parasite entered Mexico in late 2024.
360,000 sterile flies have already been released around the site, a control method Mexican and U.S. agriculture authorities consider the most effective way to contain and eradicate the pest.
The finding lands just days before the U.S. is due to reopen cattle crossings on Monday at Agua Prieta-Douglas after a border closure of more than a year, and USDA did not immediately say whether the schedule would change.
More than 40 U.S. cases have been confirmed in Texas since early summer, underscoring the risk to livestock as cross-border cattle trade is set to resume.