_:vb50956543 . _:vb50956543 . _:vb50956543 "A parasitic protozoa infectious disease that involves infection of the large intestine by a protozoan parasite Dientamoeba fragilis. The symptoms include diarrhea, stomach pain and cramping, loss of appetite and weight, nausea, and fatigue."^^ . _:vb50956543 . _:vb50956543 . _:vb50956543 . _:vb50956543 "url:http://www.cdc.gov/ncidod/dpd/parasites/dientamoeba/factsht_dientamoeba.htm"^^ .