This micrograph confirms the presence of hookworms in a host’s intestines where they will reside while obtaining nutrients. The hookworm uses its sharp cutting teeth to grasp firmly to the intestinal wall, and while remaining fastened in place, ingests the host’s blood, obtaining its nutrients in this fashion, thereby, causing the sufferer to become anemic..

Picture & text from CDC/PHIL. For more information see Hookworm Pictures from CDC