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AN EPIZOOTIC DISEASE OF FERRETS CAUSED BY A FILTERABLE VIRUS
1Department of Animal Care and the Department of Pathology, College of Physicians and Surgeons, Columbia University, New York.
The Journal of Experimental Medicine
|October 30, 2009
Summary
A novel ferret disease, caused by a filterable virus and often complicated by hemolytic streptococcus, was identified. Experimental transmission and histological findings, including inclusion bodies, were noted, differentiating it from canine distemper and influenza viruses.
Area of Science:
- Veterinary Pathology
- Virology
- Infectious Diseases
Background:
- An epizootic disease in ferrets with a high fatality rate was observed.
- The disease's etiology and characteristics required detailed investigation.
Purpose of the Study:
- To describe a novel epizootic disease in ferrets.
- To identify the causative agent and understand disease transmission.
- To characterize the pathological features and differentiate it from related viral infections.
Main Methods:
- Experimental transmission studies using natural disease material.
- Bacteriological analysis to identify secondary invaders.
- Serological testing to assess immunological relationships.
- Histopathological examination for cellular changes and inclusion bodies.
Main Results:
- The disease is caused by a filterable virus and is experimentally transmissible.
- Hemolytic streptococcus was identified as a frequent secondary bacterial invader.
- Histology revealed characteristic cytoplasmic and intranuclear inclusion bodies in epithelial cells.
- No immunological relationship was found with canine distemper or human influenza viruses.
Conclusions:
- A distinct viral agent is responsible for this severe ferret epizootic.
- Secondary bacterial infections, particularly hemolytic streptococcus, exacerbate the disease.
- The presence of inclusion bodies, while similar to canine distemper, does not indicate a shared viral etiology.
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