| [pilot program of immunization against viral hepatitis b, integrated in the extended immunization program in abancay (peru)]. | abancay is located at 2,395 m.a.s.l. in the peruvian andean region. it is a hyperendemic area for hepatitis b virus (hbv) and hepatitis delta virus (hdv) infection, where 7% of the deaths are caused by acute and chronic hepatitis infections. in 1991, a pilot immunization program against hbv infection was started to control the incidence of vhb-vhd, and as a strategy to improve the epi coverage in general. | 1995 | 8580449 |