E. aerogenes E. amnigenus E. arachidis E. asburiae E. bugandensis E. cancerogenous E. cloacae E. cowanii E. dissolvens E. gergoviae E. helveticus E. hormaechei E. intermedius E. kobei E. ludwigii E. mori E. nimipressuralis E. oryzae E. pulveris E. pyrinus E. radicincitans E. taylorae E. turicensis E. soli Cloaca Castellani & Chalmers, 1919 Aerobacter Hormaeche & Edwards, 1958 Enterobacter is a genus of common Gram-negative, facultatively anaerobic, rod-shaped, non-spore-forming bacteria of the family Enterobacteriaceae.

[1] Several strains of these bacteria are pathogenic and cause opportunistic infections in immunocompromised (usually hospitalized) hosts and in those who are on mechanical ventilation.

[4][5] The genus Enterobacter ferments lactose with gas production during a 48-hour incubation at 35-37 °C in the presence of bile salts and detergents.

[7] As a gram negative bacterium, the lipopolysaccharide capsule helps to avoid phagocytosis and can initiate inflammatory response.

[10] Furthermore, the same bacterial strain, isolated from the patient, induced obesity and insulin resistance in germfree C57BL/6J mice that were being fed a high-fat diet.

The study concludes that E. cloacae B29 may contribute to obesity in its human hosts through an endotoxin-induced, inflammation-mediated mechanism.