The U.S. Department of Agriculture (USDA) confirmed on Wednesday that the New World screwworm fly has been detected in Texas, marking the first such case in the state since 1966. The flesh-eating larvae were found in a 3-week-old calf in La Pryor, Texas, about 50 miles from the Mexican border. Agriculture Secretary Brooke Rollins stated that a 12-mile quarantine zone has been established to prevent the spread of the parasite, which does not pose a threat to the food supply. Officials emphasized that the detection has been contained and that no other cases have been reported in the U.S.
Immediate Action & Core Facts
The USDA’s Animal and Plant Health Inspection Service confirmed the presence of the screwworm fly, prompting the quarantine of warm-blooded animals within a 12-mile radius of the affected farm. Rollins assured the public that the food supply remains safe and that additional resources have been deployed to support containment efforts. The screwworm fly, which lays eggs in open wounds or orifices of warm-blooded animals, can quickly infest herds if left unchecked.
Deeper Dive & Context
Historical Context
The screwworm fly was eradicated in the U.S. in the 1970s after causing significant economic losses to the livestock industry. The current detection follows reports of the fly’s movement across Mexico, which has raised concerns among U.S. and Texas agriculture officials. The USDA has been dropping sterile screwworm flies in the region to prevent further spread, a method previously used to eradicate the pest.
Economic and Industry Impact
A potential outbreak could cost Texas livestock producers hundreds of millions of dollars, with broader economic losses estimated at over $1.8 billion. The fly’s larvae feed on animal tissue, leading to severe infections and potential death if untreated. Texas State Veterinarian Bud Dinges emphasized the importance of vigilance and adherence to quarantine measures to prevent further infestations.
Official Statements and Preparedness
Rollins stated that the USDA is confident in its preparations and does not anticipate a mass infestation. She urged producers to remain watchful and report any suspected cases immediately. The USDA has also secured a contract with Minnesota to assist in containment efforts, highlighting the collaborative response to the threat.
Public Health and Safety
While the screwworm fly poses a serious threat to livestock, officials reiterated that it does not infest food and that properly treated animals can recover. The quarantine zone prohibits the movement of warm-blooded animals, including pets, without inspection to prevent the spread of the parasite.