Anthrax, Ricin, Smallpox: Which Is the Deadliest Bioterrorism Agent?

[riky]

Anthrax, Ricin, Smallpox: Which Is the Deadliest Bioterrorism Agent?

In between the Boston Marathon bombings and the devastating explosion in West, Texas, last week, Americans also heard about the interception of several pieces of mail meant for President Obama, Senator Roger Wicker, and a Mississippi judge. All contained ricin, a poison made from castor beans. After 30 years of relative obscurity, ricin was back in the news as a bioterrorism agent.

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