Detection of Antibodies against Ehrlichia canis, Ehrlichia chaffeensis and Anaplasma phagocytophila in Stray Dogs in Bangkok, Thailand
World Small Animal Veterinary Association World Congress Proceedings, 2003
Sathaporn Jittapalapong; Burin Nimsupan; Roger W. Stich; Soichi Maruyama; Philippe Bruqui; Hisashi Inokuma
Department of Parasitology, Faculty of Veterinary Medicine, Kasetsart University
Bangkok, Thailand

Ehrlichia canis, E. chaffeensis and Anaplasma phagocytophila are the tick-borne pathogens of ehrlichiosis in both human and dogs. E. canis causes disease mainly for canine host, and E. chaffeensis and A. phagocytophila cause the majority of apparent diseases in humans. The number of stray dogs in Bangkok have been increasing and caused public health problems.


The purpose was to evaluate the infection rate of E. canis, E. chaffeensis and A. phagocytophila in stray dogs in Bangkok.


Canine sera were taken from 100 stray dogs in Bangkok. The antibody titers against each agent were examined by immunofluorescence assay. The titers of 1:20 or higher were thought to be positive.


Positive rates against E.canis, E. chaffennsis and A. phagocytophila were 22, 22 and 11 %, respectively. Although most of dogs showed higher titers against E. canis than other 2 agents, 4 dogs showed higher titers against E. chaffeensis than that of E. canis. The antibody titers against A. phagoocytophila were relatively lower than those of Ehrlichia species.


E. canis seemed a main agent that infects dogs in Thailand. It is suggested that other Ehrlichia species related to E. chaffeensis may also infect on stray dogs in Thailand.

Speaker Information
(click the speaker's name to view other papers and abstracts submitted by this speaker)

Sathaporn Jittapalapong
Department of Parasitology, Faculty of Veterinary Medicine, Kasetsart University
Bangkok, Thailand

MAIN : Oral Presentations : E canis, E chaffeensis, A phagocytophila
Powered By VIN

Friendly Reminder to Our Colleagues: Use of VIN content is limited to personal reference by VIN members. No portion of any VIN content may be copied or distributed without the expressed written permission of VIN.

Clinicians are reminded that you are ultimately responsible for the care of your patients. Any content that concerns treatment of your cases should be deemed recommendations by colleagues for you to consider in your case management decisions. Dosages should be confirmed prior to dispensing medications unfamiliar to you. To better understand the origins and logic behind these policies, and to discuss them with your colleagues, click here.

Images posted by VIN community members and displayed via VIN should not be considered of diagnostic quality and the ultimate interpretation of the images lies with the attending clinician. Suggestions, discussions and interpretation related to posted images are only that -- suggestions and recommendations which may be based upon less than diagnostic quality information.


777 W. Covell Blvd., Davis, CA 95616


  • Toll Free: 800-700-4636
  • From UK: 01-45-222-6154
  • From anywhere: (1)-530-756-4881
  • From Australia: 02-6145-2357