RT journal article T1 Serological and molecular survey of hepatitis E virus in cats and dogs in Spain A1 Caballero Gómez, Javier A1 Rivero Juarez, Antonio A1 Jurado Tarifa, Estefanía A1 Jiménez Martín, Débora A1 Jiménez Ruiz, Elena A1 Castro Scholten, Sabrina A1 Ulrich, Rainer G A1 López López, Pedro A1 Rivero, Antonio A1 García Bocanegra, Ignacio A2 BiomedicinaBiotecnología y Salud Pública K1 Hepatitis E K1 Orthohepevirus A K1 Orthohepevirus C K1 cat K1 dog K1 survey K1 zoonoses AB Hepatitis E virus (HEV) is an emerging zoonotic pathogen that is currently recognized as one of the major causes of acute human hepatitis worldwide. In Europe, the increasing number of hepatitis E cases is mainly associated with the consumption of animal food products or contact with infected animals. Dogs and cats have been suggested as a zoonotic source of HEV infection. The aim of this study was to assess Orthohepevirus circulation, including HEV-A, HEV-B and HEV-C species, in sympatric urban cats and dogs in southern Spain. Between 2017 and 2020, blood samples were collected from 144 stray cats and 152 dogs, both strays and pets. The presence of antibodies against HEV were tested using a double-antigen sandwich ELISA and seropositive samples were further analysed by western blot. A RT-PCR was performed to detect RNA of Orthohepevirus species (HEV-A, HEV-B and HEV-C). A total of 19 (6.4%; 95%CI: 3.6-9.2) of the 296 animals tested showed anti-HEV antibodies by ELISA. Seropositivity was significantly higher in dogs (9.9%; 15/152; 95%CI: 5.1-14.6) than in cats (2.8%; 4/144; 95%CI: 0.1-5.5). Ten of the 18 ELISA-positive animals that could be further analysed by western blot, reacted against HEV-3 and/or HEV-C1 antigens, which suggest circulation of both genotypes in urban cats and dogs in the study area. However, HEV-A, HEV-B and HEV-C RNA were not detected in any of the tested sera. This is the first study to assess HEV circulation in both stray cats and dogs in Europe. Our results provide evidence of HEV exposure in sympatric urban cat and dog populations in southern Spain. Further studies are needed to determine the role of these species in the epidemiology of HEV. PB Wiley SN 1865-1682 YR 2022 FD 2022-01-07 LK http://hdl.handle.net/10498/38867 UL http://hdl.handle.net/10498/38867 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 06-nov-2026