Journal of
Public Health and Epidemiology

  • Abbreviation: J. Public Health Epidemiol.
  • Language: English
  • ISSN: 2141-2316
  • DOI: 10.5897/JPHE
  • Start Year: 2009
  • Published Articles: 616

Full Length Research Paper

Factors influencing the sero-prevalence of Trypanosoma brucei gambiense sleeping sickness in Juba District, Central Equatoria State, Southern Sudan

Yassir Osman Mohammed1, Khitma Hassan ElMalik2, Mohammed Musa Mohammed-Ahmed3 and Intisar Elrayah4
1Department of Tsetse and Trypanosomosis Control, Centeral Veterinary Research Laboratries (CVRL), Federal Ministry of Science and Technology, Sudan. 2Faculty of Veterinary Medicine, University of Khartoum, Sudan. 3Faculty of Veterinary Medicine and Animal Production, Sudan University of Science and Technology, Sudan. 4Tropical Medicine Research Institute (TMRI), Federal Ministry of Science and Technology, Sudan.
Email: [email protected]

  •  Accepted: 19 May 2010
  •  Published: 31 August 2010


A surveillance of the Gambian type of Human African Trypanosomosis (HAT) conducted in Juba area using the Card Agglutination Test for Trypanosomosis (CATT) showed that 257 (11.1%) out of 2322 individuals were sero-positive. The sero-positive rate in the pooled adults was higher but not significanty different from that of the pooled children. The adult females sero-prevalence rate was significantly higher than those of adult males, male or female children. There were no significant differences in the sero-prevalence rates between adult men and male or female children. The internally-displaced group and the military personnel showed statistically higher sero-positive rates than the resident groups regardless of the presence or absence of the only extant tsetse species, Glossina fuscipesfuscipes. The proportions of sero-positives differed significantly between locations in the study area. The respondents examined along the riverine vegetation had a statistically higher encounter with the disease than those in the derived savanna and the open savanna woodland. There was no significant correlation between the density of G. fuscipes fuscipes and the incidence of Trypanosoma bruceigambiense.


Key words: CATT, sero-prevalence, sleeping sickness, HAT, Gambian type.