Epidemiology and Infection

Original Papers

Zoonoses and animal infections

Bartonella infection in urban and rural dogs from the tropics: Brazil, Colombia, Sri Lanka and Vietnam

E. C. BRENNERa1, B. B. CHOMELa1 c1, O.-U. SINGHASIVANONa1, D. Y. NAMEKATAa1, R. W. KASTENa1, P. H. KASSa1, J. A. CORTÉS-VECINOa2, S. M. GENNARIa3, R. P. RAJAPAKSEa4, L. T. HUONGa5 and J. P. DUBEYa6

a1 Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA, USA

a2 Laboratorio de Parasitología, Facultad de Medicina Veterinaria y de Zootecnia, Universidad Nacional de Colombia-Sede Bogotá, Bogota, Colombia

a3 Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo, São Paulo, Brazil

a4 Department of Veterinary Pathobiology, Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, Sri Lanka

a5 Department of Parasitology and Pathobiology, Faculty of Veterinary Medicine, University of Agriculture and Forestry, Ho Chi Minh City, Vietnam

a6 U.S. Department of Agriculture, Agricultural Research Service, Animal and Natural Resources Institute, Animal Parasitic Diseases Laboratory, Beltsville, MD, USA

SUMMARY

Dogs can be infected by a wide range of Bartonella spp., but limited studies have been conducted in tropical urban and rural dog populations. We aimed to determine Bartonella antibody prevalence in 455 domestic dogs from four tropical countries and detect Bartonella DNA in a subset of these dogs. Bartonella antibodies were detected in 38 (8·3%) dogs, including 26 (10·1%) from Colombia, nine (7·6%) from Brazil, three (5·1%) from Sri Lanka and none from Vietnam. DNA extraction was performed for 26 (63%) of the 41 seropositive and 10 seronegative dogs. Four seropositive dogs were PCR positive, including two Colombian dogs, infected with B. rochalimae and B. vinsonii subsp. berkhoffii, and two Sri Lankan dogs harbouring sequences identical to strain HMD described in dogs from Italy and Greece. This is the first detection of Bartonella infection in dogs from Colombia and Sri Lanka and identification of Bartonella strain HMD from Asia.

(Received January 09 2012)

(Revised February 10 2012)

(Accepted March 04 2012)

(Online publication March 30 2012)

Key words

  • Bartonella ;
  • Brazil;
  • Colombia;
  • Sri Lanka;
  • stray dogs;
  • Vietnam

Correspondence:

c1 Author for correspondence: B. B. Chomel, DVM, PhD. Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA 95616, USA. (Email: bbchomel@ucdavis.edu)

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