Biological Weapons
Biological weapons constitute an increasingly important ethical and political issue for science and technology. This entry examines that issue by defining biological weapons (BWs), reviewing the history of their use, considering efforts to deal with future threats, and analyzing the ethical and political aspects of BWs.
Definition
Biological warfare is the intentional use of disease-causing microorganisms or other entities that can replicate themselves—such as viruses, infectious nucleic acids, and prions—against humans, animals, or plants for hostile purposes. It also may involve the use of toxins, which are poisonous substances produced by living organisms, including microorganisms (such as botulinum toxin), plants (for example, ricin derived from castor beans), and animals (snake venom, for instance). The synthetically manufactured counterparts of those toxins are considered BWs when they are used for purposes of warfare.
Although biological agents have the potential to cause mass casualties, the numbers are often more a matter of scare mongering than real: when it is claimed, for example, that a pound of botulinum toxin can kill six billion people, which is not a real possibility. It nevertheless remains the case that one-quarter of all deaths worldwide and about 50 percent of all deaths in developing countries are attributed to infectious diseases.
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