Long-term response rates of successful hepatitis B vaccination in HIV-infected patients

► We evaluated durability of anti-HBs titers after vaccination in HIV-infected adults. ► The durability of anti-HBs related to the anti-HBs after the primary vaccination. ► Mean time to loss of anti-HBs was 2 years for pts with anti-HBs 10-100 IU/I. ► Mean time to loss of anti-HBs was 4.4 years for pts with anti-HBs >1000 IU/I. ► HIV-RNA <50 and use of HAART were not associated durability of anti-HBs.