| determination of fecal occult blood in primary schoolchildren infected with trichuris trichiura. | a correlation of trichuris trichiura infection and fecal occult blood detection was conducted in 146 primary schoolchildren in narathiwat province, thailand. the kato-katz thick smear method was used for determining egg counts and stated as eggs per gram of feces (epg). the number of t. trichiura eggs was categorized as class i (1-499 epg), class 11 (500-4,999 epg), and class iii (> 5,000 epg), according to the relation between infection intensity and reduced hemoglobin concentration. each fecal ... | 2005 | 16438133 |