[Viral encephalitis (etiology, pathogenesis, classification)].

The existing classifications of viral encephalitis are based on mixed, heterogenous principles. The author on the grounds of comparing modern data, related to the etiology, pathogenesis, predilectiveness, gives his suggestions as to a new classification of viral encephalitis. This classification is structured according to the pathogenetical principles, with a consideration of the different variants of the dynamics and polymorphism of separate nozological forms, depending upon the interrelationships of the viral and the immunity factors.