LatinNews Daily - 23 September 2025

*Mexico’s Agriculture Minister Julio Berdegué has announced that authorities are controlling an “isolated case” of the new world screwworm (NWS) in the northern state of Nuevo León, applying measures that were agreed just over a month ago with the US government. Mexico’s national service for agrifood health, safety, and quality (Senasica) stressed that the case was detected in time and that the larvae were in an early stage, meaning there was no possibility of the NWS fly appearing, minimising the risk of spread. This comes after the US Department of Agriculture (USDA) announced that Mexico had confirmed a new case of NWS in Sabinas Hidalgo, Nuevo León, on 21 September, which it said was less than 70 miles (112km) from the US-Mexico border, representing “the northernmost detection of NWS during this outbreak, and the one most threatening to the American cattle and livestock industry”. The NWS outbreak prompted the US government to close the border to Mexican livestock imports in July, following a previous closure in May. In a press conference on 22 September, Mexico’s President Claudia Sheinbaum stated that a team from the USDA had spent several weeks in Mexico reviewing the monitoring conditions that were being implemented in relation to the NWS. She said the decision from this review would be announced in the coming days, stressing that the US had agreed that “the decision to open or close the border would not be discretionary, but would be based on a series of technical indicators”.

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