Bioterrorism
RiVax safe against ricin
Published in Vaccine Weekly, November 2nd, 2005
According to J.E. Smallshaw and associates, "Ricin toxin is a plant-derived ribosome inactivating protein (RIP) of extraordinary toxicity. Vaccination using ricin toxoid or its A chain (RTA) is protective in animals but both vaccines have two potential toxicities, RIP and vascular leak syndrome (VLS)."
"Previously," they wrote, "we described three recombinant RTA constructs from which both toxicities were eliminated by site-specific mutations. One mutant, V76M/Y80A, RiVax, has now been further characterized for immunogenicity and toxicity in animals."
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Source: Vaccine Weekly (2005-11-02)
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