Streptobacillus And Spirillum
| Streptobacillus moniliformis | Spirillum minus | |
| General characteristics | 1. Requires blood, serum or ascite fluid in the medium and incubation under CO2 2. Facultative, nonmotile anaerobe 3. Highly pleomorphic | Gram (-), helical, strictly aerobic |
| Disease Association | Haverhill fever | Ratbite fever (SODOKU) |
| Lab diagnosis | Blood | Blood, exudate, or lymph node tissues |
| Direct Detections | Pus or exudates – stained with gram or giemsa stain | Characteristic spirochetes – using Giemsa or Wright stain / dark-field microscopy |
| Media and cultivation | Broth cultures – “fluff balls or breadcrumbs” | nonculturable |
