A rural pest wiped out in the United States 60 years ago has returned to Texas, but local officials say Madison County livestock are not in immediate danger.

The U.S. Department of Agriculture confirmed the first New World screwworm case June 3 in a calf near La Pryor in Zavala County. Five more cases followed by June 9 — two additional calves in Zavala County, two calves in La Salle County, a goat in Gillespie County and a dog in Lea County, New Mexico.