Ricin Vaccine Saf
February 1, 2006 7:52 AM Subscribe
Human trials show ricin vaccine is safe. For those that don't know ricin is a very potent poison that can be made from castor beans. Details of medical effects are available on Emedicine. Ricin was famously used in the murder of Georgi Markov. Research was done at UT Southwestern Medical Center in Dallas, TX.
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