Serological evidence of exposure to Rickettsia, Bartonella and Ehrlichia spp. in healthy or Leishmania infantum infected dogs from Barcelona - Roura, Xavier (Universitat Autònoma de Barcelona. Hospital Clínic Veterinari) ; Breitschwerdt, Edward (North Carolina State University. Department of Clinical Sciences and the Vector Borne Disease) ; Lloret, Albert (Universitat Autònoma de Barcelona. Hospital Clínic Veterinari) ; Ferrer i Caubet, Lluís (Universitat Autònoma de Barcelona. Departament de Medicina i Cirurgia Animals) ; Hegarty, B. (North Carolina State University. Department of Clinical Sciences and the Vector Borne Disease)