Anthrax, or splenic fever, is a disease. Both humans and other animals can get it. It is caused by the bacterium bacillus anthracis. It is common with even-toed ungulates (some hoofed creatures, like camels and giraffes). The spores of the bacteria can live for hundreds of years. Humans usually catch the disease from animals. It is usually not passed from one human to another. Anthrax can be treated with antibiotics. There is also a vaccine against it. If not treated, anthrax often leads to death.