Systemic Coronaviral Disease in 5 Ferrets
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Updated: Oct 13, 2026

A Fluorogenic Peptide Cleavage Assay to Screen for Proteolytic Activity: Applications for coronavirus spike protein activation
Published on: January 9, 2019
Christopher R Autieri1, Cassandra L Miller2, Kathleen E Scott1
1Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.
Abstract:
The prevalence of reported systemic coronaviral disease in ferrets (Mustela putorius furo), which resembles the dry form of feline infectious peritonitis, has been increasing in the literature since its initial diagnosis and characterization approximately 10 y ago. Here we describe the clinical signs, pathologic findings, and diagnosis by immunohistochemistry using an FIPV3-70 monoclonal antibody of systemic coronaviral disease in 5 ferrets, 2 of which were strictly laboratory-housed; the remaining 3 were referred from veterinary private practices. This case report illustrates the importance of considering FRSCV infection as a differential diagnosis in young, debilitated ferrets with abdominal masses and other supporting clinical signs.
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