| intestinal parasitic infestation among different population groups of andaman and nicobar islands. | a survey was carried out among the rural and urban settlers and two tribal groups viz. nicobarese and onges, of andaman and nicobar islands. the survey covered preschool school aged children and adults. out of the total 1,384 stool samples examined, 652 (47.1%) showed ova or cysts of one or more intestinal parasites. among the preschool children, nicobarese showed the highest overall prevalence rate (80.5%) followed by urban (46.7%) and rural (38.6%) preschool children. ascaris lumbricoides was ... | 1996 | 9057449 |