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- W2034941259 abstract "Antibody responses to standard regimens of hepatitis B (HBV) vaccination are lower in HIV-infected subjects and the best hepatitis B vaccine schedule in this population is not known. To assess the immunogenicity and to evaluate predictors of serologic response of a modified regimen of a HBV recombinant vaccine in a cohort of HIV-infected subjects. HIV-infected subjects received 4 doses (40 μg) of a recombinant HBV vaccine at 0, 1, 2 and 6 months. Demographic information as well as CD4 cell count and plasma viral load were assessed at baseline. Protective and strong responses were defined as an anti-HBs titer ≥10 mIU/mL and ≥100 mIU/mL, respectively and were evaluated one month after the third and the fourth doses. 163 HIV-infected individuals were evaluated 67 (40%) were male and median age was 37 years. Median CD4 cell count was 385 cells/mm3 and 113 (70%) had undetectable HIV-1 viral load. Protective antibody response was observed in 83 and 91% and a strong antibody response was observed in 62 and 80% of the subjects after 3 and 4 doses, respectively. In a multivariate logistic model undetectable HIV-1 viral load and higher CD4 cell counts were independent predictors of a strong antibody response after 4 doses. Patients with undetectable HIV viral load were almost 3 times more likely to have anti-HBs titers above 100 mIU/mL than those with detectable viral load. A 4-double-dose regimen of a recombinant HBV vaccine increased response rates and determined higher antibody titers which may translate in prolonged protection agains HBV. Inclusion of a fourth dose of HBV vaccine for HIV-infected subjects should be considered in the public health setting." @default.
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- W2034941259 date "2012-09-01" @default.
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- W2034941259 title "Vaccination against hepatitis B with 4-double doses increases response rates and antibodies titers in HIV-infected adults" @default.
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- W2034941259 doi "https://doi.org/10.1016/j.vaccine.2012.07.028" @default.
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