“…It is common in South America, Australia and parts of Asia; for example, in Beirut, Syria, 0 75o% of hospital admissions over a 10-year period were patients with echinococcus cysts (Baurys, 1952). In Great Britain there are no figures of value about the incidence of hydatid disease because there is no proper system of reporting primary cases infested here as distinct from those infested overseas.…”