City Of Seattle
Seattle Fire Department (SFD)
_________________________________________Metropolitan Medical Strike Team (MMST)
03/17/01
3
Radiation sickness is similar to any other illness in the body. The ``disease'' is just radiation.
It
should be noted that individuals who have been properly decontaminated and are
suffering from radiation injuries are NOT radioactive!!
D. BIOLOGICAL AGENTS
Once the subject of movies like
Outbreak
or
The Andromeda Strain,
the use of biological
agents is the oldest of the NBC triad. Biological agents are more deadly than chemical agents
and occur in nature as well as being developed. Large numbers of naturally occurring poisons
have also been examined to determine their value as chemical warfare agents; these include
capsaicin (an extract of cayenne pepper and paprika), ricin (a toxic substance found in the
castor bean), and saxitoxin (a toxic substance secreted by certain shellfish). Of the many natural
toxic materials, none has received more attention than the toxin of the common bacterium
clostridium botulinum, which is sometimes ingested from food that has been improperly canned
or preserved. A tiny quantity can produce death. Sprayed in the air or introduced into a water
system, it might prove to be a highly effective agent. Of nuclear, biological and chemical agents,
biological agents are by far the cheapest to produce.
Governments have used biological warfare as long as civilization has depended on agriculture.
Today, various governments continue to research the development of poisonous toxins that are
far more deadly than chemical warfare agents.
The most practical method of initiating infection using biological agents is through the dispersal of
agents as minute, airborne particles (aerosols) where finely divided particles of liquid or solid
suspended in a gas are sprayed over a target where the particles may be inhaled. An aerosol
may be effective for some time after delivery, since it will be deposited on clothing, equipment,
and soil. When the clothing is used later, or dust is stirred up,
responding personnel may be
subject to a ``secondary'' dispersal
.
Biological agents may be able to use portals of entry into the body other than the respiratory
tract. Individuals may be infected by ingestion of contaminated food and water or even by
direct contact with the skin or mucous membranes through abraded or broken skin. This makes
the use of protective clothing a must, along with protection of the respiratory tract through the
use of a mask with biological filters or SCBA.