true about Giardiasis -
During unorable conditions in the duodenum enchantment occurs .usually in the colon .Infection of man occurs by ingestion of cyst in contaminated food and water .Infective dose is 10 to 100 cysts (refer pgno:31 baveja 3 rd edition)
Only cyst is infective
Reside in ceacum
Only man to man transmission
Exist in one phases
parasitology