MEXICO CITY (Reuters) -Mexico’s agriculture ministry said on Monday another case of the flesh-eating screwworm parasite was detected in Nuevo Leon state, which borders the United States.

The infested calf had originated from the south of Mexico and was intercepted in the town of Montemorelos, south of Monterrey. None of the other 84 animals in the same shipment were found to be infested, the ministry said in a statement.

The screwworm larvae, which infest and can kill livestock if untreated, in the detected case were all found dead or dying as a result of mandatory treatments, including the antiparasitic ivermectin, the statement added.

Mexico’s agriculture ministry and sanitation agency Senasica recently told sector groups that ivermectin must be given 72 hours in advance of the moveme

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