الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 248 |  |  |
| | | from | 248 | | |
Abstract
G. lamblia is a major cause of enteric diseases world wide (Coggins & Schaefer, 1986). Giardiasis is produced by ingestion of cysts which undergo transfonnation into flagellated trophozoites exhibiting specific tropism for the proximal small intestine where they attach to the mucosal surface or exist free in the intestinal lumen ( Sharma & Mayrhofer, 1988). Infection of the . small intestine of human with G. lamblia may have an asyrnptornatic course, or it may produce acute or chronic diarrhea. The different clinical outcome of giardiasis can be attributed, at least partially to, strain differences and host resistance ( Cedillo-Rivera et al., 1989). Clinical methods used for G.lamblia diagnosis involve microscopic search for the whole parasites in stool or in material retrieved’ from’ small intestine by duodenal aspiration, duodenal biopsy or string test ( Stibbs et al., 1988). Detection of Giardia antigen in faeces by ELISA is a promising approach ( Goka et al., 1986).