- Biological weapon (BW)
- Biological weapons use microorganisms and natural toxins to produce disease in humans, animals, or plants. Biological weapons can be derived from: bacteria (anthrax, plague, tularemia); viruses (smallpox, viral hemorrhagic fevers); rickettsia (Q fever and epidemic typhus); biological toxins (botulinum toxin, staphylococcus enterotoxin B); and fungi (San Joaquin Valley fever, mycotoxins). These agents can be deployed as biological weapons when paired with a delivery system, such as a missile or aerosol device.
 Anthony Cordesman, Syria and Weapons of Mass Destruction (Washington, DC: Center for Strategic and International Studies, 2000), p. 9.
 Kenneth R Timmerman, Weapons of Mass Destruction: The Cases of Iran, Syria and Libya (Los Angeles: Simon Wiesenthal Center, 1992), pp. 60-61.