| seroprevalence of entamoeba histolytica infection in hiv-infected patients in china. | seroprevalence of entamoeba histolytica infection in hiv-infected individuals from shanghai city, anhui province, and henan province, china, was examined by enzyme-linked immunosorbent assay using crude antigen and a recombinant surface antigen, c-igl, of the parasite. in 215 hiv-infected individuals, the positive rates for these antigens were 12.1% and 7.9%, respectively; these rates were significantly higher than the rates of 3.1% and 0.5%, respectively, in 191 patients with gastrointestinal s ... | 2007 | 17984335 |