Ans: This disease is caused by Bacillus anthracis. This is a soil bacterium. This microbe come in contact by inhaling, touching or by ingesting the spores of the microbes. As the spores enters the body, the bacteria start multiplying and produces toxins.Ans: There are four different are cutaneous, gastro-intestinal, inhalation and injection. Cutaneous: When the spores of anthrax enter through the skin’s cut, it develops cutaneous anthrax. This can happen also by handling of contaminated products of animals or infected animals. This is the most common form of anthrax where the neck, head, hands, forearms get affected.