الفهرس 
History of bilharziasisOnly 14 pages are availabe for public view
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Abstract
Bilharziasis, is an endemic parasitic disease which constitute a major public health problem in many countries of the world including Egypt (World health organisation, 1985)15 - 30% of Egyptian population of the 60 million is infested with schistosoma mansoni and schistosoma haematobium (Harrison et al., 1990)Many drugs were used in mass therapy of bilharziasis e.g. antimonial drugs, niridazole, lucanthone, hycanthone oxamniquine, metrifonate and many others.
Praziquantel (biltricid, distocid) is the drug used now in Egypt for treatment of all types of bilharziasis.
The aim of this work is to study and analyse the effect of praziquantel (biltricid, distocid) as a widely used anti bilhazial drug on hearing threshold of bilharzial patients.
The study was conducted on 60 bilharzial patients 36 males and 24 female. Their age ranged from 20 - 40 years.
Each subject was subjected to full history, full clinical examination, E.N.T. examination, laboratory evaluation and audiological evaluation.