Jul 9, 2009 - The enemy within: 10 human parasites. (Necator americanus) Scabies mite. (Sarcoptes scabiei var. (Ascaris lumbricoides) Flatworm blood fluke. (Schistosoma mansoni, S. (Taenia solium) Pinworm. (Enterobius vermicularis) Wuchereria bancrofti. Toxoplasma gondii.