Corynebacterium species are considered nonpathogenic in canine dermatitis; however, potential clinical significance has been demonstrated in canine otitis externa and from a dog bite wound in a human. Objectives of this study were to identify the predominant Corynebacterium species present in lesions of canine dermatitis, assess pathogenic role, determine antimicrobial susceptibility, and evaluate clinical response. Of 37 isolates identified as Corynebacterium, 31 were Corynebacterium auriscanis. Most Corynebacterium isolates were susceptible to chloramphenicol (97%), tetracyclines (92%), and amikacin (89%); isolate susceptibilities to β-lactams, trimethoprim-sulfonamides, and fluoroquinolones were <50%. Most cultures grew mixed populations of bacteria; C. auriscanis was the only organism isolated in three patients. At recheck, 2–8 wk after initial presentation, pleomorphic rods were absent or significantly decreased in all patients. Two of three C. auriscanis isolates were obtained in pure culture and were evaluable, meaning patient had an initial exam and recheck examination. Both patients were already on antimicrobials to which C. auriscanis was resistant in vitro. Both improved after doxycycline administration. C. auriscanis may act as an opportunistic pathogen in canine dermatitis and may not respond to antimicrobial therapy based on susceptibilities for other organisms in mixed infections. Occasionally, Corynebacterium isolated alone may be pathogenic.
Skip Nav Destination
Article navigation
November/December 2015
Retrospective Studies|
November 01 2015
Retrospective Evaluation of Canine Dermatitis Secondary to Corynebacterium spp.
Nicole Ann Boynosky, MS;
Nicole Ann Boynosky, MS
From the Dermatology Department, Veterinary Specialty Hospital, San Diego, CA.
Search for other works by this author on:
Laura B. Stokking, PhD, DVM
Laura B. Stokking, PhD, DVM
From the Dermatology Department, Veterinary Specialty Hospital, San Diego, CA.
Search for other works by this author on:
J Am Anim Hosp Assoc (2015) 51 (6): 372–379.
Citation
Nicole Ann Boynosky, Laura B. Stokking; Retrospective Evaluation of Canine Dermatitis Secondary to Corynebacterium spp.. J Am Anim Hosp Assoc 1 November 2015; 51 (6): 372–379. doi: https://doi.org/10.5326/JAAHA-MS-6243
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Could not validate captcha. Please try again.
Sign in via your Institution
Sign in via your InstitutionCiting articles via
Long-Term Survival of Primary Intracranial Histiocytic Sarcoma Through Surgical Resection and Low-Dose CCNU
Kyosuke Hidari, DVM, Yuya Nakamoto, DVM, PhD, James K. Chambers, DVM, PhD, Kazuyuki Uchida, DVM, PhD, Isao Mori, DVM, Miwa Nakamoto, DVM
Microfilaria in the Urine of a Dog with Concurrent Urinary Bladder Sarcoma
Nicole Schlette, DVM, Erin Burton, DVM, MS, DACVP, Amber Harris, DVM, DACVIM (Internal Medicine), Kendall Langsten, DVM, DACVP, Erik Olson, DVM, PhD, DACVP, Daniel Heinrich, DVM, DACVP
Chronic Myelomonocytic Leukemia with Central Nervous System Involvement in a Dog
Ilaria Tartari, DVM, Fabio Tocco, DVM, Giorgio Cancedda, DVM, Veronica Angioni, DVM, Marco Podda, DVM, Antonella Gallucci, DVM, PhD, DECVN, EBVS
Treatment Outcomes of Canine Orbital Meningiomas in Seven Cases
Akihiro Uno, DVM, Ryota Iwasaki, DVM, PhD, Takashi Mori, DVM, PhD
Transient Hypoadrenocorticism in a 7-Week-Old Kitten
Alba Planas Vintro, BVM, Linda G. Martin, DVM, MS, DACVECC, Cassidy L. Cordon, DVM, Sabrina N. Hoehne, Dr. med. vet., DACVECC, DECVECC, Elizabeth B. Davidow, DVM, DACVECC