Bacillus anthracis virus infection often causes anthrax, which, depending on the route of invasion, mainly includes cutaneous anthrax, pulmonary anthrax, intestinal anthrax, anthrax septicemia, and anthrax meningitis, among which cutaneous anthrax is more common. The main symptoms of Bacillus anthracis infection are usually the main symptoms of anthrax, and there are some differences in the performance of different cases: 1. Cutaneous anthrax: lesions are mostly found on the face, neck, hands, feet and other exposed parts of the skin, beginning mostly as a rash or papule, which later develops into a blister containing a yellowish liquid, which can be accompanied by swelling of the surrounding tissue. It gradually evolves into a central sunken area with hemorrhagic necrosis surrounded by clusters of small blisters, and the necrotic area gradually breaks down and crusts over. The black scabs tend to fall off within 1-2 weeks and gradually heal into scars. Pain is not obvious, may be accompanied by mild itching, as well as fever, headache, malaise and other toxic symptoms; 2, anthrax septicemia: in addition to aggravation of the primary symptoms, can also be accompanied by persistent high fever, chills, respiratory failure and other symptoms, prone to infectious shock, diffuse intravascular coagulation and meningitis; 3, anthrax meningitis: the main symptoms include severe headache, vomiting, delirium, convulsions, coma, etc., the condition can deteriorate rapidly After 2-4 days, the symptoms may worsen, with persistent high fever, sweating, cyanosis, hemoptysis, chest pain and other symptoms. In severe cases, shock or sepsis and meningitis can occur, and may even die within a day; 5, intestinal anthrax: more manifestations of high fever, vomiting, diarrhea, abdominal pain and even gastrointestinal bleeding caused by vomiting blood, feces mixed with blood and other symptoms, the abdominal cavity may appear ascites, and in severe cases can be combined with anthrax sepsis causing shock or even death.