Once inside a host, female worms release fertilized eggs that are passed out in human feces, starting the next phase of their ...

Large roundworms are visible to the naked eye and in a bad infestation, adult worms may be seen in fecal droppings. Large ...

Globally, over 600 million people are infected with the skin-penetrating threadworm, Strongyloides stercoralis, mostly in tropical and subtropical regions with poor sanitation infrastructure.