Infection with the parasitic worm, Strongyloides stercoralis is lifelong, unless treated. This cunning parasite lives in the small intestine of humans and produces infective larvae inside the body. These autoinfective larvae reinfect the unfortunate host from the inside. The original infection is due to infective larvae that have developed in faeces deposited on the ground (just like hookworm). But unlike hookworm, when the old worms die, for Strongyloides, the effete mother worms have been replaced by generations of young and vigorous daughters.
