the egg-containing segments are then dispersed through the feces of the carnivore. Like many other parasite infections, the course of Echinococcus infection is complex. The worm has a life cycle that requires definitive hosts and intermediate hosts. Definitive hosts are normally carnivores such as dogs, while intermediate hosts are usually herbivores such as sheep and cattle. Humans function as accidental hosts, because they are usually a dead end for the parasitic infection cycle.
Treatment: Many patients can be treated with anti-worm medicines. The cysts may be removed with surgery, if possible. But this can be a complicated surgery.