Ricin
is a natural, highly toxic compound that is one of the byproducts of
processing castor beans.
If
inhaled, injected or ingested, less than a pinpoint of ricin can kill
a person within 36 to 48 hours due to the failure of the respiratory
and circulatory systems.
There
is no known cure.
One
molecule of ricin will kill a cell it enters.
Ricin
ingestion is not always fatal. Children are at more risk than adults.
If
ingested, ricin causes nausea, vomiting and internal bleeding of the
stomach and intestines, followed by the failure of the liver, spleen
and kidneys, and finally death by collapse of the circulatory system.
If
a castor bean seed is swallowed whole without damage to the seed
coat, it will probably pass harmlessly through the system. But if the
coat is chewed or broken, then swallowed, the poison will enter the
body.
If
injected, ricin causes the immediate death of the muscles and lymph
nodes near the site of the injection. Failure of the major organs and
death usually follows.
Medical
experts point out that ricin is nowhere near as powerful a killer as
anthrax.
Source: cnn
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