The most effective methods of birth control are sterilization by means of vasectomy in males and tubal ligation in females, intrauterine devices (IUDs) and implantable contraceptives. This is followed by a number of hormonal contraceptives including oral pills, patches, vaginal rings, and injections.
Strongyloides StronÂ·gyÂ·loiÂ·des (strÅn'jÉ-loi'dÄz) n. A genus of small nematode intestinal parasites that includes the species that causes strongyloidiasis in humans.
Strongyloidiasis is caused by the nematode (roundworm) Strongyloides stercoralis. The genus Strongyloides is classified in the order Rhabditida, and most members are soil-dwelling microbiverous nematodes.Most of the 52 species of Strongyloides do not infect humans. S stercoralis is the most common human pathogen.Other species include S myopotami and S procyonis. These species have animal hosts and are thus responsible for zoonotic infections.he life cycle of Strongyloides stercoralis is complex and unique among the intestinal nematodes. This worm has 2 types of life cyclesâa free-living life cycle (rhabditiform larvae) and a parasitic life cycle (filariform infective larvae)âwith 3 developmental stages: adult, rhabditiform larva, and filariform larva.