[IMPACT OF THE IMMUNIZATION PROGRAM INTEGRATED TO THE EXPANDED IMMUNIZATION PROGRAM(EPI) IN HUANTA,1994-1997].

INTRODUCTION: Huanta is an interandean valley at 2,400 meters above sea level in the peruvian highlands. It is hyperendemic for HBV, and deaths related to HBV such a fulminant hepatitis, cirrhosis and hepatic carcinoma make up 8% of the total mortality. A pilot program of inmunization against HBV integrated with the Expanded Immunization Program (EPI) was established in 1994, so as to limit the incidence if HBV-HDV, and as a strategy to improve EPI coverages.