 Furthermore, since humans often come into contact with "Echinococcus" eggs via touching contaminated soil, animal feces and animal hair, another prevention strategy is improved hygiene.In addition to targeting risk factors and transmission, control and prevention strategies of cystic echinococcosis also aim at intervening at certain points of the parasite's life cycle, in particular, the infection of hosts (i.e.especially dogs) that reside with or near humans.