Parasitic Infections of the Alimentary Canals in Humans

Parasitic infections of the gastro-intestinal tract (Alimentary Canal) are major cause of morbidity and
mortality worldwide and Jos in particular. This chapter reviewed possible parasites of alimentary canal
with a view to controlling them starting from Jos Nigeria. Three major intestinal parasites identified
among students of tertiary institution in Jos are Ascaris lumbricoides, hookworm and Schistosoma
mansoni. Among children in primary school in Jos, four intestinal parasites which are soil transmitted
helminths that are prevalent are: Ascaris lumbricoides, hookworm, Trichuris trichuria and
Strongyloides stercolaris. Fresh vegetables; Lettuce, Cabbage, Carrot, Spinach, Green Pepper,
Cucumber, Beetroot, Tomatoes, Garden egg, and Green beans have been suspected to be carriers of
numerous available intestinal parasites in Jos such as: Hookworm, Ascaris lumbricoides, Trichuris
trichuria, Strongyloides stercoralis, cyst of Entamoeba histolytica and Giardia lambia. The intestinal
parasites can be controlled through drinking very good water, adequate hygiene and proper vegetable
washing and possible eradication of musca domestica (house fly) which is another transmitter of such
intestinal parasites and regular dewarming in Jos and other parts of the world. This study indicates
that intestinal parasitic infection is a major public health concern worldwide, and the morbidity they
cause. The measures aimed at their control and prevention needs to be strengthened and various
steps taken to reduce the infection rate to the levels at which they cease to be of public health
significance. This could be feasible at reasonable cost as a result of the development of primary
health care, based on community support and intersectional collaboration.