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

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, Trichuris trichiura and the hookworms1 while schistosomiasis affects nearly 200 million people in 75 countries. The prevalence of infections and degree of factors predisposing to infection vary from one region to another2.