RT journal article T1 Leishmania infantum Specific Humoral and Cellular Immune Responses in Cats and Dogs: A Comparative Cross-Sectional Study A1 Priolo, Vito A1 Martínez Orellana, Pamela A1 Grazia Pennisi, Maria A1 Raya Bermúdez, Ana Isabel A1 Jurado Tarifa, Estefanía A1 Masucci, Marisa A1 Donato, Giulia A1 Bruno, Federica A1 Castelli, Germano A1 Solano Gallego, Laila A2 BiomedicinaBiotecnología y Salud Pública K1 ELISA K1 IFAT K1 IFN-γ K1 PCR K1 canine K1 feline K1 feline immunodeficiency virus K1 leishmaniosis K1 prevalence K1 whole blood assay AB Dogs are the main reservoir of Leishmania infantum and display different immunological patterns correlating with the progression of infection to disease. Data about feline L. infantum adaptive immune response are scant. This study aimed to compare the prevalence and immune response in cats and dogs from the same endemic area of canine leishmaniosis. Stray cats (109) and rescued dogs (59) from Córdoba (Spain) were enrolled. Data about their exposure to L. infantum were analyzed by detection of parasite DNA, measurements of Leishmania-specific interferon-γ (whole blood assay in 57 cats and 29 dogs), and antibodies (enzyme-linked immunosorbent assay and immunofluorescence antibody test). An overall L. infantum prevalence of 30.5% in dogs and 30% in cats were found according to serology and PCR tests. Prevalence was 44.8% in dogs and 35.1% in cats tested also for interferon-γ production. Dogs showed higher anti-L. infantum antibody levels compared to cats. More than one-third of cats had contact with or were infected by L. infantum and they may contribute to the endemicity of leishmaniosis in the investigated region. The immunopathogenesis of feline L. infantum infection has similarities with dogs but cats show a lower level of adaptive immune response compared to dogs. PB MDPI SN 2306-7381 YR 2022 FD 2022-09-07 LK http://hdl.handle.net/10498/38866 UL http://hdl.handle.net/10498/38866 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 05-nov-2026