<unk>  is a member of the normal gut flora of many humans and is not usually a primary pathogen. Some strains have been associated with urinary tract and respiratory tract infections in immunocompromised individuals. Treatment with cefepime and gentamicin has been reported. A 2012 study in which<unk>  transplanted into previously germ-free mice resulted in increased obesity when compared with germ-free mice fed an identical diet, suggesting a link between obesity and the presence of<unk>  gut flora.
Enterobacter cloacae
Escherichia coli
Citrobacter koseri
Klebsiella oxytoca
Proteus mirabilis
Enteroaggregative Escherichia coli
Salmonella enterica subsp. enterica
Bacillus cereus