Intensity of infection and reinfection rate of A. lumbricoides in a rural farming village, Dembia district, northwest Ethiopia.

The purpose of this study was to determine the intensity of infection and reinfection rate of A. lumbricoides at a village in Dumbia District, Northwest Ethiopia. It was done in June 1992 and repeated in June 1993. Among 192 examined for intestinal parasites, the prevalence rate was 60.9%. Infection with A. lumbricoides was 34.4%. Children in the age-group 1-4 years had the highest egg count (arithmetic mean of 3040 eggs per gram of stool) for A. lumbricoides. Reinfection rate after 11 months among those treated against A. lumbricoides was 53%. The study has an important implication in understanding the local epidemiology of A. lumbricoides and in the design of community-based control programmes.