Whats the difference between “testing positive” for exposure to anthrax and having the disease?
A person can test positive if a spore is detected on his or her body or if a blood test reveals the antibodies against anthrax. But while one spore could trigger a positive test, that would not be enough to make a person sick. And the antibody test shows only that a person was exposed to anthrax at some point in his or her life. Particularly with the skin form of the disease, a person could have been exposed and never been aware of it.