A rancher in Starr County has identified a case of New World screwworm in a calf. This discovery has prompted the rancher to urge others to be vigilant. Starr County officials have confirmed the case, which was identified on a Sunday.

The details of the incident are available through ValleyCentral, although some viewers may find the accompanying images and videos to be graphic. Further information about the confirmed case can be found through ValleyCentral, including the rancher's experience and the confirmation by Starr County officials.