Texas officials have detected the state’s first case of anthrax for 2003 in a white-tailed deer near Del Rio. “It’s not unusual to have a few cases of anthrax in livestock or deer each year in Texas,” said Bob Hillman, DVM, state veterinarian and executive director for the Texas Animal Health Commission (TAHC), the state’s livestock health regulatory agency.

Anthrax naturally occurs in Texas and other Great Plains states, and horses occasionally get the disease. The anthrax agent is a resilient spore-forming bacterium called Bacillus anthracis, which lives in the ground. Livestock ingest B. anthracis when they forage close to the ground during drought, or when they eat feed grown on infected soil. Horses seem to be more resistant to anthrax than other livestock species, such as sheep or cattle. Naturally occurring anthrax appears in Texas from late June through September and October, and outbreaks end with the start of cooler weather