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

Abstract

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 fuscipes fuscipes. 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 brucei gambiense.