Although terrorists could use many disease-causing agents, experts on biological warfare regard anthrax and smallpox as the two biggest hazards. Other infectious diseases that pose a threat include plague, tularemia, botulism and tuberculosis. However, experts believe these organisms and diseases are unlikely to cause widespread illness because they're difficult to manufacture and distribute. These organisms are also less hardy than anthrax is.
Anthrax is caused by Bacillus anthracis and its spores. Anthrax can infect people in three different ways. Cutaneous anthrax develops when the bacteria enter your body through superficial cuts or wounds on your skin. The vast majority of anthrax infections are cutaneous. Intestinal anthrax results from eating food contaminated with the anthrax bacteria. Inhalational anthrax occurs when you breathe the anthrax bacterial spores into your lungs. This form of anthrax is usually fatal.
The death rate for anthrax from inhaled sources is very high, approaching 100 percent. Death rates are lower for anthrax that enters your body through food or a wound. Anthrax is not transmitted from person to person, the way a cold or influenza is passed, therefore, it cannot spread in large populations. However, microbiologists consider anthrax a serious hazard because its bacteria are suitable as a weapon. Anthrax is easy to produce, and it's readily