Experts say a speck no bigger than a grain of salt is enough to kill an adult. Symptoms include chest pain, nausea, fever, muscle aches and organ failure.
Thu, Feb 05, 2004 - Page 7 News List
`Angry trucker' suspected over ricin scare
BIO-TERROR The ricin found in the US Senate may have come from a disaffected man thought to have threatened the White House and the Department of Transportation
AFP , WASHINGTON
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