Ancylostoma duodenale is a type of hookworm that lives in the intestines of humans. It typically enters the body through contaminated soil or water. The life cycle involves larvae passing through human feces and developing in the soil. They then infect the human skin in contact with contaminated soil, enter the bloodstream, migrate to the lungs, and are eventually coughed up and swallowed. They mature in the intestines, feed on blood, lay eggs, and the cycle repeats. Ancylostoma duodenale infection can lead to anemia and stunted growth in children