Patients with asplenia are prone to overwhelming infections due to encapsulated organisms. We report a 62-year-old man presenting with fever and weakness. His medical history was significant for splenectomy and owning a dog as pet. The patient on examination had evidence of animal bite and scratch marks on his lower extremity and developed dry gangrene of multiple digits of his upper extremity soon after admission. The patient's initial blood cultures were positive for Gram-negative rods, but no organism was identified. Capnocytophaga canimorsus was the suspected organism and the patient's antibiotics were tailored accordingly, with good clinical recovery. The patient' blood cultures finally grew C canimorsus on day 20 for which the patient had already been treated with prior clinical judgement. Physicians should be aware of this organism in the setting of sepsis in patients with asplenia and use appropriate antibiotics until further results are obtained.
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http://dx.doi.org/10.1136/bcr-2013-202768 | DOI Listing |
Zoonoses Public Health
January 2025
Infectious Diseases Branch, Division of Communicable Disease Control, Center for Infectious Diseases, California Department of Public Health, Sacramento, California, USA.
Introduction: Capnocytophaga is a genus of bacteria that are commensal to the oral microbiome of humans and some animals. Some Capnocytophaga species are found in the human oral cavity and rarely cause disease in people; the species found in animals are zoönotic and can be transmitted to people via saliva. This study describes the clinical and epidemiologic features of patients from whom Capnocytophaga spp.
View Article and Find Full Text PDFAm J Case Rep
January 2025
Vascular and Endovascular Surgery, Department of Cardiovascular Surgery, Mayo Clinic Health System, Eau Claire, WI, USA.
BACKGROUND The bacterial organism Capnocytophaga canimorsus is an oral commensal of cats and dogs and can cause life-threatening infections like mycotic aneurysm, meningitis, and sepsis. Mycotic aneurysms occur when microbial infections cause arterial wall degeneration. Difficulty in diagnosing Capnocytophaga canimorsus infection can occur due to the bacteria's fastidious nature and laboratory testing limitations, contributing to the infection's high morbidity and mortality.
View Article and Find Full Text PDFMicrobiol Resour Announc
January 2025
Institute of Veterinary Bacteriology, Vetsuisse Faculty, University of Bern, Bern, Switzerland.
The zoonotic pathogen is part of the oral microbiome of dogs and cats. We report the genome sequence of strain KM3195_24, isolated from a red fox. It has a circular genome of 2,718,701 bp with a G + C content of 36%, 2,419 CDS, 3 rRNA operons, and 45 tRNAs.
View Article and Find Full Text PDFCureus
December 2024
Infectious Disease, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, USA.
We discuss a case of meningitis caused by infection in a previously healthy elderly male who presented with altered mental status and new-onset seizures requiring intensive care. An open wound had served as an entry point for the infectious organism. After 25 days of treatment with meropenem, he recovered with persistent functional limitations and was discharged.
View Article and Find Full Text PDFEur J Vasc Endovasc Surg
December 2024
Department of Vascular Surgery, Dijon University Hospital, Dijon, France.
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