Screwworm Outbreak Hits Bacalar Cattle Herds

José María Morelos, Mexico — Livestock authorities in Quintana Roo have intensified efforts to assist producers following the detection of screwworm infestations in cattle herds, primarily in communities of the state's southern zone.

Ángel Gabriel Castillo Jiménez, Director of Bovine Development for the Secretariat of Agricultural, Rural, and Fisheries Development (Sedarpe), stated that timely reporting has allowed for a rapid response to contain the spread of the pest. He reported that between 60 and 70 affected animals have been accounted for so far, with the municipality of Bacalar registering the highest number of cases due to its extensive bovine production.

"As long as the producer reports in a timely manner, we respond immediately with all available resources," the official stated, emphasizing that each report received activates a protocol for immediate attention.

The procedure consists of going directly to the identified ranch, examining the suspected animal, and applying sanitary measures that include cleaning wounds and using medications such as Negazom, liquid blue dye, antibiotics, and 1% ivermectin. The strategy also includes treating the entire herd even if only one animal presents symptoms.

"If one animal shows symptoms, everyone is treated to prevent contagion," he explained.

In addition to Bacalar, livestock brigades have intervened in communities such as San Isidro, Sabán, and Santa Gertrudis, where isolated cases have also been detected.

Castillo Jiménez noted that this pest is not new to the state, as it seriously affected producers in the 1990s; however, authorities now have greater technical preparation and sufficient medications to deal with outbreaks.

The director urged livestock farmers not to minimize the problem or delay reports, as early detection is crucial to saving the lives of the animals.