Article by Stephen Simpson and Berenice Garcia / The Texas Tribune An infestation of the flesh-eating flies has been confirmed in South Texas, setting off alarm bells for the state's cattle industry.

A sample from a 3-week-old calf from La Pryor in Zavala County tested positive for the country's first case of New World screwworm, the U. S Department of Agriculture Secretary Brooke Rollins said during a June 3 news conference about the case.

There have been no other detections so far.