Natural cases of polyarthritis associated with feline calicivirus infection in cats

Balboni, Andrea, Verin, Ranieri ORCID: 0000-0001-9366-5682, Buldrini, Isotta, Zamagni, Silvia, Morini, Maria, Terrusi, Alessia, Gallina, Laura, Urbani, Lorenza, Dondi, Francesco and Battilani, Mara (2022) Natural cases of polyarthritis associated with feline calicivirus infection in cats. VETERINARY RESEARCH COMMUNICATIONS, 46 (2). pp. 613-619.

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Official URL: http://dx.doi.org/10.1007/s11259-022-09933-4

Abstract

The limping syndrome is occasionally reported during acute feline calicivirus (FCV) infections or as consequence of vaccination. In this retrospective study, three clinical cases of lameness in household cats naturally infected by FCV were described and phylogeny of the virus were investigated by analysing the hypervariable E region of the ORF2 viral gene. Cats were diagnosed with polyarthritis and FCV RNA or antigens were detected in symptomatic joints. One cat, euthanized for ethical reasons, underwent a complete post-mortem examination and was subjected to histopathological and immunohistochemical investigations. No phylogenetic subgrouping were evident for the sequenced FCV. Histopathology of the euthanized cat revealed diffuse fibrinous synovitis and osteoarthritis eight months after the onset of lameness and the first detection of FCV RNA, supporting the hypothesis of a persistent infection. FCV was demonstrated by immunohistochemistry in synoviocytes and fibroblasts of the synovial membranes. This study provides new data on the occurrence of polyarthritis in FCV-infected cats, demonstrates by immunohistochemistry the presence of FCV in the synovial membranes of a cat with persistent polyarthritis and supports the absence of correlation between limping syndrome and phylogenetic subgrouping of viruses.

Item Type:	Article
Uncontrolled Keywords:	Cat, Feline calicivirus, Lameness, Limping, Polyarthritis, Synovial fluid
Divisions:	Faculty of Health and Life Sciences Faculty of Health and Life Sciences > Institute of Infection, Veterinary and Ecological Sciences
Depositing User:	Symplectic Admin
Date Deposited:	24 Oct 2022 09:23
Last Modified:	28 Apr 2023 00:31
DOI:	10.1007/s11259-022-09933-4
Open Access URL:	https://doi.org/10.1007/s11259-022-09933-4
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3165722