For the period 1967-1996 he was observed 368 patients in the age 16-65 years with levelnum paragonimiasis with disease duration from 1-2 to more than 10 years. 248 patients had acute paragonimiasis with disease duration up to 1 year, 20 – subacute (duration of illness over 1 year), and 100 – chronic disease (proceeded more than 2 years). The disease is characterized by fever, cough, chest pain, focal and infiltrative darkening in the lungs, cystic formations, exudative pleurisy, spontaneous pneumothorax, leukocytosis and eosinophilia in peripheral blood. The diagnosis was confirmed in 97.9% of cases by serological method. Recovery was achieved in 89% of patient’s levelnum paragonimiasis (PL) when using praziquantel.