Anthrax is most common in animals in agricultural regions of the world. Anthrax is rare in humans. An estimated 20,000 to 100,000 cases occur yearly worldwide
An anthrax vaccine has been licensed for use in humans. The vaccine is reported to be 93% effective in protecting against anthrax infection from skin contact. The vaccine is currently approved only for healthy men and women ages 18-65 years. Pregnant women should not be vaccinated.