S. Gatti et al., A SURVEY OF AMEBIC INFECTION IN THE WONJI AREA OF CENTRAL ETHIOPIA, Annals of tropical medicine and parasitology, 92(2), 1998, pp. 173-179
An epidemiological survey to characterize Entamoeba histolyrica/E. dis
par isolates from 123 human subjects was carried out in the Wonji area
of Central Ethiopia, where an increased incidence of amoebic infectio
n has been reported. In a randomized, coproparasitological study, 93 (
75.6%) of the subjects were found positive for at least one species of
intestinal parasite: 14 (15.1%) harboured only one species and 79 (84
.9%) were infected with at least two species. In-vitro culture in Robi
nson's medium revealed amoebic parasites in 52 (82.5%) of the 63 cases
tested. Of the 29 amoebic isolates successfully stabilized, cloned an
d characterized by Sargeaunt's electrophoretic technique, 27 (93.1%) w
ere of E. dispar zymodemes (19 of zymodeme I, two each of zymodemes II
I, V and XI, and one each of zymodemes X and XV) and two (6.9%) were o
f E. histolytica (zymodeme XIII).