'I was prepared': Starr County rancher recalls identifying screwworm in calf

Editor's note: Videos and images in this article may be graphic for some viewers. HARLINGEN, Texas (ValleyCentral) — A Starr County rancher is urging people to remain vigilant after discovering the first confirmed case of the New World screwworm in a calf. Starr County officials confirmed its first New World screwworm case on Sunday, prompting [...]