• A second case of the flesh-eating screwworm was confirmed in Texas.
• Canada has temporarily banned imports of Texas livestock due to the outbreak.
• Texas Governor declared a state of disaster amid growing concerns.
• The USDA plans to combat the screwworm with sterilized flies and monitoring measures.
• Experts warn of significant economic impacts on the cattle industry from the outbreak.

The U.S. Department of Agriculture (USDA) has confirmed a second case of the flesh-eating screwworm parasite in Texas, located in Zavala County and just miles from the first detected case. This second case involves a one-month-old calf, as reported after the initial case involving a three-week-old calf detected in La Pryor, Texas. The discovery of the screwworms, which pose deadly threats to livestock by burrowing into the flesh of living animals, has causes alarm among ranchers, especially given the proximity to the U.S.-Mexico border. Rear Admiral Michael Schmoyer confirmed there was only one infested animal in the region, aiming to contain the outbreak rapidly, according to Reuters and BBC.

In response to the outbreak, Canada's Food Inspection Agency has imposed a temporary ban on the import of livestock from Texas. The ban will affect any cows and horses that were in Texas within the 21 days before attempting to cross into Canada. Governor Greg Abbott of Texas has declared a state of disaster, emphasizing the "imminent threat" posed by the screwworm outbreak and expressing concern that the infection could spread during the summer months. He indicated that actions are necessary to protect the agricultural sector, as the parasite is traditionally relocated from warmer climates, as indicated by reports from BBC and Los Angeles Times.

The USDA is actively monitoring the situation as they initiate control measures, including quarantine and testing in the affected area. Notably, the agency has been aware of more than 200 active screwworm infestations across border states in Mexico, with reports indicating that this parasite has been migrating northward from Central America. The USDA also plans to release genetically altered sterile flies to curb the screwworm population, alongside deploying sniffer dogs to locate infected cattle. However, experts are debating whether these measures will adequately halt the infestation's spread into the United States, as stated in Reuters, BBC, and Los Angeles Times.

Experts in the field, including veterinarians, warn about the potential economic impact of the screwworm outbreak on the cattle industry, projecting that the outbreak could result in losses exceeding $10.6 billion across the southern United States. With Texas being a major player in U.S. beef production, the rising costs and the threat to livestock are significant concerns for local ranchers. Additionally, the unique nature of screwworm larvae, which cannot survive freezing temperatures, raises worries that infected animals could carry the parasites into more temperate regions, such as Southern California. Continuous monitoring efforts at the U.S.-Mexico border will be crucial to prevent further infection, as highlighted by BBC and Los Angeles Times.