EN
During 1953 we made ambulatory observations of 410 cases of lambliosis. On the basics of results obtained we can state that atebrin is an efficient drug (91,7 per cent) in the treatment of lambliosis even when it is administered in low doses (twice daily a 0.1 g.) and for a short period of time (3 days). Closer analysis of the 278 families revealed that lambliosis spreds easily among inmates. Having this in mind we regard as indispensable in every case of lambliosis to conduct examtnations and eventually to direct to treatment the closest environment of the patient.