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.
The worms (Strongyloides ransomi and others) are about 4 mm long and are found in the upper part of the pig's small intestine. They can cause enteritis, severe diarrhoea (often bloodstained), anaemia, poor growth and death. Piglets up to 8 weeks of age are most susceptible and death rates up to 75% have been reported.