The brown granular anthrax mostly caused skin infections , cutaneous anthrax ( 9 out of 12 cases ) .
Kathy Nguyen 's case of inhalation anthrax occurred at the same time and in the same general area as two cutaneous cases and several other exposures .
The brown granular anthrax mostly caused skin infections , cutaneous anthrax ( 9 out of 12 cases ) , although Kathy Nguyen 's case of inhalation anthrax occurred at the same time and in the same general area as two cutaneous cases and several other exposures .