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Other (Gram Negative Bacilli)
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>Aeromonas species:
1] Aeromonas hydrophila
2] Aeromonas veronii
3] Aeromonas shubertii
>Bartonella species:
1] Bartonella bacilliformis
2] Bartonella henselae (organism responsible for cat scratch disease)
3] Bartonella Quintana
4] Other
>Campylobacter:
1] Campylobacter fetus
2] Campylobacter jejuni
>Capnocytophaga species: 
1] Capnocytophaga canimorsus
2] Capnocytophaga ochracea
>Francisella tularensis
>Helicobacter pylori
>Legionella species: ( L. pneumophila)
>Plesiomonas shigelloides
>Vibrio species:
1] Vibrio cholera
2] Vibrio parahaemolyticus
3] Vibrio damsela
4] Other
Capnocytophaga:
- Gram-negative bacteria. High degree of polymorphism. Commensal species that is considered an opportunistic pathogen.
- Capnocytophaga are capnophilic bacteria, they can live only in environments where the concentration of carbon dioxide is greater than that of the atmosphere.
- Capnocytophaga are fusiform Gram negative bacilli, and are part of the oral commensal flora (often isolated from periodontal pockets but also from apical and periodontal abscesses).
- Includes 8 different species: Capnocytophaga ochracea, Capnocytophaga gingivalis, Capnocytophaga granulosa, Capnocytophaga haemolytica, Capnocytophaga sputigena, Capnocytophaga leadbetteri (isolated oral cavity of humans) and Capnocytophaga canimorsus and Capnocytophaga cynodegmi (isolated from the oral cavity of animals).
- Normally found in the oropharyngeal tract of mammals, they are involved in the pathogenesis of some animal bite wounds as well as periodontal diseases.
- Capnocytophaga canimorsus transmission following a dog bite can cause overwhelming sepsis in asplenic patients, the elderly, and the immunocompromised.
- Empiric treatment for this bacteria following a dog bite, consisting of a third-generation cephalosporins early in the infection, should be instituted in these patient populations, or following deep bites or dog bites to the hand.
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