Pasteurella multocida has been implicated in a variety of infections, including pulmonary, skin, bone, joint, cardiovascular, and central nervous system infections. Urinary tract infections caused by
P. multocida, however, are rare. We studied a case of urinary tract infection caused by
P. multocida in a 70-year-old woman with a 22-year history of non-insulin-dependent diabetes mellitus. Her urine was positive for gram-negative bacilli, which were identified as
P. multocida. The same bacilli were isolated from the oral cavity of her daughter's pet dog. Both bacilli were found to be identical in terms of biological properties, drug susceptibility profile, serotype, and plasmid type. The clinical impact of the infection of this patient was minimal. Her hemoglobin A1c level had clearly improved one year after disappearance of the bacilli. The main reason for the improvement in the urinary findings was cessation of animal contact due to the death of the dog, with the antibiotic treatment only being temporarily effective. These findings suggest that
P. multocida urinary tract infection is almost asymptomatic, even if such infection results in an increased hemoglobin A
1c level.
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