[Prediction of the course of acute purulent diseases of the lung and pleura].

The paper presents the data of examination of 62 patients with acute purulent diseases of the lung and pleura (abscess, empyema, pyopneumothorax). The persistent and virulent characteristics of causative agents isolated just from a suppuration focus during its puncture are described. There was an association of the high level of antilysozyme, anticomplementary, and hemolytic activities of bacterial pathogens with the severe course of a disease. On this basis, a mathematical model that can predict the course of acute purulent diseases of the lung and pleura with an accuracy of as high as 95% has been constructed.