Anthrax is an acute infectious disease caused by a spore-forming bacterium called?Bacillus anthracis. It is generally acquired following contact with anthrax-infected animals or anthrax-contaminated animal products. Anthrax has received heightened attention recently because of its use as a biological warfare agent. (A) Guidance: Occupational Exposure to Anthrax: OSHA Frequently Asked Questions. NOTE: The following answers do not impose and are not intended to result in the imposition of any new legal obligations or constraints on employers or on the States. The guidance presented here is based on OSHA's understanding of currently available National information, which is being re-evaluated continuously. This information may change as additional questions arise and as more information becomes available, please continue to visit this page or?OSHA's website?for the most updated information