Jorge Ramón López-Olvera

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The distribution of bluetongue virus has changed, possibly related to climate change. Vaccination of domestic ruminants is taking place throughout Europe to control BT expansion. The high density of wild red deer (Cervus elaphus) in some European regions has raised concerns about the potential role that unvaccinated European wild ungulates might play in(More)
In 2001 and 2002, an outbreak of a previously unreported disease, associated with a border disease virus (BDV), caused high mortality in the Southern chamois (Rupicapra pyrenaica) population in the Alt Pallars-Aran National Hunting Reserve in the Catalan Pyrenees (NE Spain). Between 2002 and 2006, sera and/or tissue samples taken from 116 healthy chamois(More)
The most widely used technique to assess helminth infection in both domestic and wild mammals is the faecal egg count (FEC). Most efforts to test the reliability of FEC as a proxy for parasite load are in small ruminant studies and limited work has evaluated the use of FEC in pigs. The aim of this study was to explore whether FEC is a reliable indicator of(More)
Antibodies to Neospora caninum were determined in the red fox (Vulpes vulpes) in the Pyrenees, north-eastern Spain. Sera from 53 red foxes (29 male and 24 female) were tested using a Neospora agglutination test (NAT). Seroprevalence at dilutions of 1/40, 1/80 and 1/160 was 69.8%, 47.2% and 7.5%, respectively. Sex differences were significant only at a(More)
Wild boar (Sus scrofa) populations are increasing in the Iberian Peninsula, and population management must include disease management and control. In this study, the epidemiology of 10 selected pathogens (Aujeszky's disease virus - ADV, porcine reproductive and respiratory syndrome virus - PRRSV, porcine influenza virus, porcine circovirus, porcine(More)
Blood samples were obtained from the dorsal coccygeal vein and the brachial vein of five adult (four females and one male) and two subadult males of marginated tortoise (Testudo marginata) and hematologic and biochemical parameters were compared. Significant differences were found for red blood cell count, hematocrit, hemoglobin concentration, total(More)
An outbreak of disease associated to a border disease virus was described in the Southern chamois (Rupicapra pyrenaica) in Spain in 2002. Sera and/or spleen samples from 57 mouflon, 15 red deer, 21 roe deer, 3 fallow deer, 55 sheep, 32 cattle, and 68 goats sharing the chamois habitat were studied. An antibody ELISA test yielded an inconclusive result in 2(More)
Kaijin Xu, Sheng Bi, Zhongkang Ji, Haiyang Hu, Feisu Hu, Beiwen Zheng, Bing Wang, Jingjing Ren, Shigui Yang, Min Deng, Ping Chen, Bing Ruan, Jifang Sheng, and Lanjuan Li. Author affiliations: State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China (K.(More)
An outbreak of a previously unreported disease affecting southern chamois (Rupicapra pyrenaica) in the central Pyrenees (NE Spain) was recorded in 2001 and 2002. There was a marked temporal distribution, most animals being found between February and June. After the outbreak, the population was found to have decreased by about 42%, most probably due to the(More)
Blood samples were taken from 75 free-ranging southern chamois (Rupicapra pyrenaica) captured in drive-nets in Catalonia, north-eastern Spain, and 20 haematological and 24 serum biochemical variables were analysed. The values were similar to those of other species of the Caprinae subfamily, except for cortisol, the concentration of which was higher. The red(More)