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Capnocytophaga sp. isolated from a cat with chronic sinusitis and rhinitis
Erin Frey1, Barrak Pressler, James Guy
1College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina 27606, USA.
Abstract:
A Capnocytophaga sp. was inadvertently isolated from a cat with chronic sinusitis and rhinitis when cytopathic effects were observed in Crandall-Reese feline kidney cells that had been inoculated with oropharyngeal swab samples. Although Capnocytophaga spp. are of considerable zoonotic importance, their clinical relevance for dogs or cats has not been established. However, failure to do so may be attributed to the infrequent use of specialized isolation techniques that are required to grow Capnocytophaga spp. To our knowledge, successful isolation of these organisms from a cat with nasopharyngeal disease has not been reported.
Insights
A novel Capnocytophaga species was isolated from a cat with chronic sinusitis. This finding highlights the potential role of these zoonotic bacteria in feline respiratory disease, previously unreported in cats.
Area of Science:
- Veterinary Microbiology
- Feline Infectious Diseases
Background:
- Capnocytophaga species are known zoonotic bacteria with uncertain clinical significance in felines.
- Specialized isolation techniques are often required for Capnocytophaga, potentially limiting their detection in animal studies.
Observation:
- Cytopathic effects were observed in Crandall-Reese feline kidney cells inoculated with oropharyngeal swabs from a cat.
- A Capnocytophaga species was inadvertently isolated from this feline sample.
Findings:
- This marks the first reported isolation of Capnocytophaga from a cat with nasopharyngeal disease.
- The study demonstrates the successful application of cell culture for isolating Capnocytophaga from feline clinical samples.
Implications:
- Suggests Capnocytophaga may play a role in feline chronic sinusitis and rhinitis.
- Underscores the importance of considering Capnocytophaga in feline respiratory diagnostics.
- Highlights the need for specialized techniques to identify these zoonotic bacteria in veterinary medicine.
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