A Rare Case of Neisseria animaloris Hand Infection and Associated Nonhealing Wound

Abstract

Neisseria animaloris is a rare pathogen in humans primarily associated with dog and cat bites. Fourteen cases have been documented in the literature related to the difficulty in identifying this bacterium in the laboratory. We present a patient case demonstrating a prolonged treatment course, which is often seen as the result of misdiagnosis, and subsequent nonhealing wound requiring multiple surgeries and eventual wide excision with staged graft coverage. We discuss the clinical course, laboratory identification techniques, surgical treatment, and patient outcome.

Nanopore Sequencing Using the Full-Length 16S rRNA Gene for Detection of Blood-Borne Bacteria in Dogs Reveals a Novel Species of Hemotropic Mycoplasma

“…Environmental bacteria that can opportunistically cause infections in humans, such as Brucella intermedia ( 57 – 59 ), Burkholderia gladioli ( 60 – 63 ), Haemophilus parainfluenzae ( 64 – 68 ), Paracoccus yeei, and Psychrobacter meningitidis ( 69 – 71 ), were detected from our Cambodian dog blood samples. Moreover, bacterial species that may be associated with the canine oral microbiome, and etiological agents responsible for canine bite wound infections, were also identified, including Pasteurella canis ( 72 – 74 ) and Neisseria animaloris ( 75 , 76 ). Despite these findings, due to limited data on such putative pathogenic bacteria, it cannot be unequivocally demonstrated that they were infecting the dog in which they were identified through our data alone.…”