| intestinal parasitic infections among schoolchildren in chiang mai, northern thailand: an analysis of the present situation. | stool examination from primary schoolchildren in chiang mai province, north thailand, was performed to determine the present state of parasitic infections in this area. out of a total of 491 children, 239 proved positive (48.7%). the most common type of parasite was found to be soil-transmitted helminths such as hookworm (26.3%) or strongyloides stercoralis (11.2%), while ascaris lumbricoides was not so prevalent (1.2% being positive in one school out of three). these results are in contrast to ... | 1989 | 2810455 |
| intestinal parasitic infections in hill-tribe schoolchildren in chiang mai, northern thailand. | we surveyed intestinal parasitic infections in hill-tribe schoolchildren residing permanently in chiang mai province. the positive rate, of 403 stool specimens examined using the formalin-ether sedimentation technique, was 48.9%. no significant difference between male (50.8%) and female (47.1%) students was found for the infection. the most common protozoa was entamoeba coli (40.9%), followed by giardia lamblia (14.9%). the most common helminth was hookworm (13.4%), followed by ascaris lumbricoi ... | 2003 | 19230577 |