Published in Vaccine Weekly, December 2nd, 2009
"The three components of the exotoxin, protective antigen (PA), lethal factor and edema factor act in a binary combination, which results in massive edema and organ failure in the progress of anthrax disease. The antiphagocytic PGA capsule disguises the bacilli from immune surveillance and allows unimpeded growth of bacilli in the host. Because PA can elicit a protective immune response, it has been a target of the anthrax...
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