After an anthrax attack, people may not know they are infected until the toxins are circulating in their blood, and it may be too late for antibiotics alone to be effective, the researchers explained.

The fact that the link between anthrax and Iraq may have provided the 'tipping point' in moving media and public opinion to the point where Bush could attack Iraq without a firestorm of protest.

The control and prevention measures on anthrax were also introduced and the measures responding to the possible bioterrorism-attack were proposed in this paper.