Dermatological anthrax may occur wherever spores come into contact with the skin. Of the following options, which statement is FALSE concerning dermatological anthrax?
1) Mortality rates are over 20-30
2) Antibiotics do not affect the course of local disease.
3) Characteristic lesion is a black escar preceded by a vesiculopapular lesion 1 week prior.
4) Initial diagnosis is usually made by Gram's stain analysis.
5) The organism most likely to cause dermatological anthrax is Bacillus anthracis.