Fikireselassie Samuel.pdf - Addis Ababa University

ACKNOWLEDGMENTS
First of all, I would like express my deepest gratitude to my advisor, Professor Berhanu Erko, for
his supervision, advice, and guidance from proposal writing to the completion of this work. I
really appreciate his genuine guidance, close supervision at each and every step, critical
evaluation of the thesis draft and immediate feedback with valuable comments.
The support from the school community of Shesha Kekele primary schools during specimen
collection is dully acknowledged.
I gratefully acknowledge the School of Graduate Studies (SGS), Addis Ababa University (AAU),
for its financial support.
It is a pleasure to pay tribute also to Mr Sisay Dessie and Ms Yirgalem G/Hiwot of the Aklilu
Lemma Institute of Pathobiology for provision of technical assistance in stool examination.
Last but not least, I would like to express my gratitude to my friends, 2002 E.C entrants of
Biomedical Department, for all the support they have given me in finalizing my research work.
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