الفهرس 
Molluscan internal defense systemOnly 14 pages are availabe for public view
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Abstract
Fascioliasis is a zoonotic disease caused by fasciola hepatica and F. gigantica . In Egypt the snail lymnaea natalensis is the intermediate host of fasciola gigantica the etiological agent of fascioliasis . In the present study exposure of lymnaea natalensis snails to fasciola gigantica miracidia resulted typically in three susceptibility patterns : A) non - infected snails , b ) normal infections