 For "E. vogeli", its hydatid cysts are large and are actually polycystic since the germinal membrane of the hydatid cyst actually proliferates both inward, to create septa that divide the hydatid into sections, and outward, to create new cysts.Like "E. granulosus" cysts, "E. vogeli" cysts are filled with fluid.As one can see from the life cycles illustrated above, all disease-causing species of "Echinococcus" are transmitted to intermediate hosts via the ingestion of eggs and are transmitted to definitive hosts by means of eating infected, cyst-containing organs.