Trypanosoma vivax, T. congolense “forest type” and T. simiae: prevalence in domestic animals of sleeping sickness foci of Cameroon

Parasite

and G. Simo⁴  T. Asonganyi³  S. Herder²  G. Cuny²  G.R. Njitchouang¹  T. Njine¹  F. Njiokou¹  H. Nimpaye¹ 

[1] Laboratoire de Biologie Générale, Département de Biologie et Physiologie Animales, Faculté des Sciences, Université de Yaoundé I,BP 812,Yaoundé,Cameroun;Laboratoire de Recherche et de Coordination sur les Trypanosomoses IRD, UMR 177, CIRAD, TA 207/G, Campus International de Baillarguet,34398 Montpellier Cedex 5,France;Faculty of Medicine and Biomedical Sciences, University of Yaoundé I,Yaoundé,Cameroun;Department of Biochemistry, Faculty of Science, University of Dschang,PO Box 67,Dschang,Cameroun

关键词: dog;    sheep;    goat;    pig;    PCR;    T. simiae;    T. congolense “forest type”;    T. vivax;   

Others  :  808873
DOI  :  doi:10.1051/parasite/2011182171

 received in 2010-06-01, accepted in 2010-10-28,  发布年份 2011

【 摘 要 】

In order to better understand the epidemiology of Human and Animal trypanosomiasis that occur together in sleeping sickness foci, a study of prevalences of animal parasites (Trypanosoma vivax, T. congolense “forest type”, and T. simiae) infections was conducted on domestic animals to complete the previous work carried on T. brucei gambiense prevalence using the same animal sample. 875 domestic animals, including 307 pigs, 264 goats, 267 sheep and 37 dogs were sampled in the sleeping sickness foci of Bipindi, Campo, Doumé and Fontem in Cameroon. The polymerase chain reaction (PCR) based method was used to identify these trypanosome species. A total of 237 (27.08%) domestic animals were infected by at least one trypanosome species. The prevalence of T. vivax, T. congolense “forest type” and T. simiae were 20.91%, 11.42% and 0.34% respectively. The prevalences of T. vivax and T. congolense “forest type” differed significantly between the animal species and between the foci (p < 0.0001); however, these two trypanosomes were found in all animal species as well as in all the foci subjected to the study. The high prevalences of T. vivax and T. congolense “forest type” in Bipindi and Fontem-Center indicate their intense transmission in these foci.

【 授权许可】

   
© PRINCEPS Editions, Paris, 2011

【 图 表 】

Fig. 1.

Fig. 2.

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