Putative progressive and abortive feline leukemia virus infection outcomes in captive jaguarundis (Puma yagouaroundi)

Autor: Claudia Filoni, A. Katrin Helfer-Hungerbuehler, José Luiz Catão-Dias, Mara Cristina Marques, Luciana Neves Torres, Manfred Reinacher, Regina Hofmann-Lehmann
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Virology Journal, Vol 14, Iss 1, Pp 1-13 (2017)
Druh dokumentu: article
ISSN: 1743-422X
DOI: 10.1186/s12985-017-0889-z
Popis: Abstract Background Feline leukemia virus (FeLV) is an exogenous gammaretrovirus of domestic cats (Felis catus) and some wild felids. The outcomes of FeLV infection in domestic cats vary according to host susceptibility, virus strain, and infectious challenge dose. Jaguarundis (Puma yagouaroundi) are small wild felids from South and Central America. We previously reported on FeLV infections in jaguarundis. We hypothesized here that the outcomes of FeLV infection in P. yagouaroundi mimic those observed in domestic cats. The aim of this study was to investigate the population of jaguarundis at Fundação Parque Zoológico de São Paulo for natural FeLV infection and resulting outcomes. Methods We investigated the jaguarundis using serological and molecular methods and monitored them for FeLV-related diseases for 5 years. We retrieved relevant biological and clinical information for the entire population of 23 jaguarundis held at zoo. Post-mortem findings from necropsies were recorded and histopathological and immunohistopathological analyses were performed. Sequencing and phylogenetic analyses were performed for FeLV-positive samples. For sample prevalence, 95% confidence intervals (CI) were calculated. Fisher’s exact test was used to compare frequencies between infected and uninfected animals. P-values
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