Prevalence of intestinal and vector-borne urinary parasites in communities in south-west Nigeria.

摘要

Intestinal and urinary helminthes are distributed worldwide, particularly in tropical and sub-tropical areas. More than one billion of the world's population, including atleast 400 million school children are chronically infected with Ascaris lumbricoides, Tri-churis trichiura and the hookworms while schisto-somiasis affects nearly 200 million people in 75 countries. The prevalence of infections and degree of factors predisposing to infection vary from one region to another.