Table. Microbiological and clinical characteristics of Exiguobacterium sibiricum and Bacillus anthracis*.
| Characteristic | E. sibiricum | B. anthracis |
|---|---|---|
| Colony on blood agar | Mucoid and orange | Gray-white to white |
| Spore production | – | + (central) |
| Motility | + | – |
| Hemolysis on blood agar | – | – |
| Penicillin susceptibility | + | + |
| Catalase production | + | + |
| Indole production | – | – |
| Growth at 4°C | + | – |
| Anaerobic growth | + | + |
| Cutaneous infection | Ulcer, black eschar, blister | Eschar, malignant pustule |
| Other infections | None reported | Intestinal anthrax, pulmonary anthrax, meningitis |
*+, present; –, absent.