Recurrent <i>Pasteurella multocida</i> urinary tract infection in a young adult with end-stage renal insufficiency: a case report

ABSTRACT Background Pasteurella multocida is a gram-negative coccobacillus that colonizes the oropharyngeal and digestive tract of animals, particularly cats and dogs. It is commonly associated with mucocutaneous and osteoarticular infections. Case Summary We report the case of a 25-year-old man with a history of obstructive uropathy and end-stage renal disease awaiting transplantation, who presented to the emergency department twice, 8 months apart, with afebrile back pain. On each admission, urine cultures grew Pasteurella multocida . Whole-genome sequencing of both isolates revealed only two single-nucleotide polymorphisms, supporting a recurrence caused by the same strain. He was treated with injections of ceftriaxone followed by fluoroquinolones for a total of 14 days. Further history revealed frequent cat bites and scratches in the household. Previously published cases of urinary tract infections due to Pasteurella sp. involved most often patients with underlying urological abnormalities. Contact with a pet was not consistently reported. Conclusion This case underscores that P. multocida can cause recurrent urinary tract infection in immunocompromised patients with pet contact.