MEDINA COUNTY, Texas – The Texas Animal Health Commission (TAHC) has reported a significant development in animal health with the detection of the New World Screwworm in a cow in northwest Medina County. This parasitic fly poses a serious threat to livestock, leading to the swift implementation of measures aimed at controlling its spread.
In response to this detection, Medina County Judge Keith Lutz announced on Wednesday that parts of Bandera, Medina, and Uvalde counties have been designated as “Infested Zone 09.” This classification allows for the immediate enforcement of a quarantine aimed at protecting livestock health and preventing further infestation.
The TAHC has imposed several animal movement restrictions within this quarantined area. These restrictions are crucial for limiting the spread of the New World Screwworm, which can cause severe damage to the health of affected animals. The quarantine will remain in effect until it is deemed safe to lift it.
Bandera County’s Response
On Thursday, Bandera County commissioners convened to discuss the possibility of declaring a local state of disaster in light of the New World Screwworm threat. This proactive measure was taken to ensure that necessary resources could be allocated to combat the parasite effectively.
Initially, Bandera County Judge Richard A. Evans signed a declaration lasting seven days. However, the commissioners quickly voted to extend this declaration to 30 days, emphasizing the seriousness of the situation. This decision enables the county to access state resources should they become necessary for managing the infestation.
During the meeting, Judge Evans highlighted the importance of acting swiftly, noting that the delay in response was due to uncertainty about the presence of the screwworm. He stated, “We have an imminent threat (of New World Screwworm),” although he clarified that there were no confirmed cases within Bandera County at that time.
Evans also raised concerns regarding Bandera County’s classification as part of “Infested Zone 09.” He pointed out that the county is situated on the periphery of this designated area, arguing that they are in an “Adjusted Surveillance Zone” rather than a quarantined area.
As of Thursday morning, the U.S. Department of Agriculture reported 17 active cases of the New World Screwworm throughout Texas, underscoring the urgency of the situation and the need for vigilant monitoring and response efforts in affected areas.

