The types of anthrax reflect the different ways the bacteria enter your body. Anthrax types include: Cutaneous (skin): Bacteria infect your body through a wound in your skin. Cutaneous anthrax is the most common and least deadly form. Veterinarians and people who handle animal wool, hides or hair are at the highest risk. Gastrointestinal: This type affects people who eat undercooked or raw meat from an infected animal. The bacteria affect your esophagus, throat, stomach and intestines. Gastrointestinal anthrax is rare in the United States. U.S.-based producers vaccinate livestock against anthrax and identify sick animals before slaughter. Inhalation: People who breathe in anthrax spores can develop this deadly form of anthrax. It can cause severe breathing problems and death. Inhalation anthrax is sometimes called woolsorter’s disease because people who work in wool mills — as well as slaughterhouse and tannery workers — may inhale spores from infected animals. Injection: People who inject heroin can get injection anthrax. This type is more common in northern Europe and hasn’t been reported in the United States. Injection anthrax causes infection deep under your skin or in muscle.