New Mexico has reported two additional cases of New World screwworm, involving a horse and a calf in Grant County, bringing the state’s total to four since the flesh-eating pest returned to the United States this summer.
The cases have prompted officials to establish infested zones around the animals’ locations. The restrictions are intended to help limit the spread of the parasite and protect livestock in surrounding areas.
Livestock Movement Restrictions Put in Place
According to reporting by Searchlight New Mexico, officials have established infested zones extending at least 12.4 miles around the locations where the affected animals were found.
Within these zones, livestock must be inspected and treated if necessary before being moved either within or outside the designated areas.
The requirements add another step for livestock owners and handlers moving animals in affected parts of Grant County. Inspections and treatment are intended to identify and address potential infestations before animals are transported, reducing the risk of spreading the pest to other locations.
Screwworm Remains a Concern for Livestock Producers
New World screwworm is a parasitic fly whose larvae feed on the living tissue of warm-blooded animals. Infestations can cause severe wounds, damage tissue and become life-threatening if left untreated.
The additional cases in New Mexico highlight the importance of monitoring animals for suspicious wounds and following animal health guidance in affected areas. Horses, cattle and other warm-blooded animals can be vulnerable to infestation.
For livestock producers, movement restrictions and inspection requirements can affect routine animal handling and transportation. Producers in designated zones should follow official instructions and ensure animals meet applicable requirements before moving them.
With New Mexico’s reported total now at four cases, continued surveillance and compliance with movement rules will be important to limiting further spread.
Listen to the accompanying report on the latest New World screwworm cases in New Mexico and the livestock movement restrictions affecting Grant County.