ABSTRACT
Ancylostoma duodenale and Necator americanus are soiltransmitted helminths (STHs) responsible for an estimated 740 million human hookworm infections worldwide. N. americanus is considered the most common infection whereas A. duodenale infections appear to be restricted to certain scattered geographical areas. Moderate and heavy hookworms infections are a leading cause of anemia, which is directly correlated with the number of adult hookworms in the human intestine. [1,2]. Although the severity of anemia has also been shown to correlate with the hookworm species involved [3,4], accurate data on the precise distribution of the two species are lacking because species differentiation is usually not performed.
