[Patients co-infected with HIV and hepatitis-B virus (HBV): the favourable effect of lamivudine, as part of combined antiretroviral therapy, on HBV may be dependent upon the number of CD4-cells].

In this retrospective study, lamivudine was effective in the therapy of HIV-infected patients with a HBV co-infection. The decrease in the amount of circulating HBV was associated with the number of CD4 cells.