Image showing life cycle inside and outside of the human body of one fairly well described helminth:<unk>  lumbricoides<unk>  is a genus of parasitic nematode worms known as the "small intestinal roundworms", which is a type of parasitic worm. One species,<unk>  lumbricoides, affects humans and causes the disease<unk> sis. Another species,<unk>  suum, typically infects pigs. Parascaris equorum, the equine roundworm, is also commonly called an "ascarid". Their eggs are deposited in feces and soil. Plants with the eggs on them infect any organism that consumes them. A. lumbricoides is the largest intestinal roundworm and is the most common helminth infection of humans worldwide. Infestation can cause morbidity by compromising nutritional status, affecting cognitive processes, inducing tissue reactions such as granuloma to larval stages, and by causing intestinal obstruction, which can be fatal.
Ascaris
Veronaea
Digenea
Aegyptiacum
Acheiropodia
Echinostoma
Leishmania
Boswellia