Abstract
Human schistosomiasis is one of the most important neglected tropical diseases. Ongoing control measures have markedly decreased the incidence of the disease. This study determined the
prevalence of Schistosoma hematobium and S. mansoni infection among school children and adults and the snail intermediate hosts in Aswan Governorate.
A cross-sectional study was carried out in four villages, El-Molcata, Karor, El-Mocla and Elkhatara. Parasitological examination of 1200 inhabitants’ stool and urine samples was examined
using direct stained smear and Kato-Katz concentration methods as well as urine sedimentation
technique. Snail vectors were collected from different water streams, identified, and examined
for schistosomes infective stages by shedding and crushing methods. Statistical analysis was
conducted using SPSS, version 25.
The results showed that S. hematobium was 4.7% and S. mansoni was 1.25% among school
children and adults , with risk factors; gender and exposure to canal water. Also, the freshwater snails
were Bulinus truncatus, Biomphalaria alexandrina, Valvata nilotica, Physa acuta, & Lymnaea
truncatula. B. truncatus was widely distributed but did not show cercariae shedding.
Keywords: Egypt, Aswan Governorate, Schistosoma mansoni, S. hematobium, Snails.
Research Date
Research Department
Research Journal
Journal of the Egyptian Society of Parasitology
Research Member
Research Publisher
The Egyptian Society of Parasitology
Research Vol
51
Research Website
https://jesp.journals.ekb.eg
Research Year
2021
Research_Pages
553-558
Research Abstract