II. Causes: Gram Negative Rods
-
Anaerobes
- Bacteroidaceae (e.g. Bacteroides fragilis)
- Facultative Anaerobes
- Enterobacteriaceae (e.g. Escherichia coli)
- Vibrionaceae (e.g. Vibrio Cholerae)
- Pasteurellae (e.g. HaemophilusInfluenzae)
- Aerobes
- Pseudomonadaceae (e.g. Pseudomonas aeruginosa)
III. Causes: Gram Negative Cocci
- Aerobes
IV. Causes: Gram Negative Obligate Intracellular Parasites
- Rickettsiae (e.g. Rickettsia)