• Bioterrorism is the intentional release or spread of agents of disease.
  • The agents may be viruses, bacteria, or toxins produced by bacteria.
  • They may spread through the air, food, or water; or they may come into direct contact with the skin.
  • Two of the best known bioterrorism incidents in the U.S. occurred early in this century: in 2001, letters containing anthrax spores were mailed to several news offices and two Senate offices.
  • In 2003, a deadly toxin called ricin was detected in a letter addressed to the White House.
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