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[Polyvirus hepatitides (prevalence, diagnosis, characteristics of virusological process)].

AIM
To ascertain prevalence of chronic hepatitides (CH) of polyvirus etiology and to characterize a course of such polyvirus CH.


MATERIAL AND METHODS
A total of 15000 patients with chronic diseases of the liver (CDL) of different etiology were examined for markers of hepatotropic viruses, 312 patients with CH aged 18-59 years were examined clinically, biochemically, virusologically and morphologically.


RESULTS
CH of polyvirus etiology are rather prevalent. A replicative form of HBV has a significant effect on the activity of the pathological process in mixed hepatitis. Incidence of chronic HBV and HCV infection rises with age. Viral hepatitis A in drug addicts runs an atypical course.


CONCLUSION
Adequate epidemiological analysis, diagnosis and antiviral treatment, follow-up of CDL of mixed viral etiology, monitoring of drug addiction, healthy life style are able to reduce prevalence of mixed hepatitis.