AUSTIN -- A yearling female sheep in West Texas has been diagnosed with anthrax, according to an Aug. 1 Texas Animal Health Commission (TAHC) press release. This is the second confirmed case of anthrax in a Texas animal for 2012 and the first in livestock this year. The infected sheep was located near Mertzon, in Irion County, which is approximately 26 miles southwest of San Angelo. The TAHC has quarantined the premises. TAHC regulations require vaccinations of exposed livestock and proper disposal of carcasses before a quarantine can be released. . . .