Case Studies and Molecular Characterisation of the Trypanosomes Responsible for Canine African Trypanosomosis (Cat) in Nsukka Area, Enugu State, Nigeria
World Small Animal Veterinary Association Congress Proceedings, 2018
P.U. Umeakuana1; E.O. Balogun2; G.D. Chechet2; M.I. Takeet3; P.O. Akpa4; W. Gibson5; R.C. Ezeokonkwo6; B.M. Anene4
1Department of Veterinary Medicine, University of Abuja, Nigeria; 2Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria; 3Department of Veterinary Microbiology and Parasitology, Federal University of Agriculture Abeokuta., Abeokuta, Nigeria; 4Nsukka, Department of Veterinary Medicine, University of Nigeria, Nsukka, Nigeria; 5School of Biological Sciences, University of Bristol, Bristol, UK; 6Nsukka, Veterinary Parasitology and Entomology, University of Nigeria, Nsukka, Nigeria


Trypanosomosis is one of the major diseases of dogs in Nsukka area, Enugu state of Nigeria. Microscopy is the widely used method of diagnosis and the most reported pathogens are the human infective trypanosomes Trypanosoma brucei gambiense and T. b. rhodesiense, in addition to T. b. brucei, and T. congolense. Microscopy alone cannot distinguish within the subspecies of Trypanozoon group.


To investigate the most prevalent subspecies of T. brucei infecting dogs in the study area.


We conducted physical examination on the trypanosomes-infected dogs and collected appropriate history from the dog owners. We used ITS 1 primer and sequence analysis to study the sub species of T. brucei.


Sequence analysis detected T. b. gambiense, T. evansi, and T. congolense in the infected dogs. Anemia evident in low PCV, Hb, RBCs, and fever were common in the infected dogs. The chief complaints were change in eye colour and gradual loss or complete loss of appetite. The common observations during physical examination were corneal opacity and enlargement of superficial lymph nodes. Some serum biochemical changes were noticed in the infected sampled dogs.


T. b. gambiense, T. evansi, and T. congolense were responsible for canine trypanosomosis in the study area, which suggest that dogs could be reservoirs of infections in humans and animals in the study area. The disease caused decrease in PCV, RBC, Hb, serum albumin, and increase in serum BUN in most of the infected dogs.


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P.U. Umeakuana
Department of Veterinary Medicine
University of Abuja

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