| intestinal parasitic infections in schoolchildren in a suburban area of hanoi, vietnam. | an epidemiological study on intestinal parasitic infections among schoolchildren in a suburban area of hanoi, vietnam, was conducted. of the 217 schoolchildren involved in this study, 166 (76%) were positive for at least one of nine species of parasite (six helminths and three protozoa). among the helminth parasites, trichuris trichiura (67%) was detected the most frequently followed by ascaris lumbricoides (34%) and hookworm (3%). in the case of protozoan parasites, entamoeba coli (8%) was the ... | 2005 | 16610642 |