**5.9. CAUTI with** *Delftia tsuruhatensis*

This non-fermentative gram-negative rod discovered as plant growth-promoting bacterium and potential biocontrol agent against plant pathogens. Infection with this uncommon organism in CAUTI occurs in combination with commonest bacteria *E. coli*, *Klebsiella pneumoniae* and *Pseudomonas aeruginosa*. *D. tsuruhatensis* and *E. coli* coexist and tend to co-aggregate over time and also cooperate synergistically [82]. *D. tsuruhatensis* metabolized citric acid more rapidly leaving more uric acid available in the medium to be used by *E. coli* for dynamic growth of both organisms. Identification of this organism is not confirmatory with culture, so molecular methods are more reliable [83].
