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Year : 2014  |  Volume : 5  |  Issue : 3  |  Page : 134-138

Serological response to one intradermal or intramuscular hepatitis B virus vaccine booster dose in human immunodeficiency virus-infected nonresponders to standard vaccination

1 Departments of Clinical Research, Pasteur Institute of Iran, Tehran, Iran
2 Imam Reza hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
3 Valiasr Hospital, Arak University of Medical Sciences, Arak, Iran
4 Iranian Society for Support of Patients with Infectious Disease, Tehran, Iran
5 Loghman Hospital, Shahid Behesti University of Medical Sciences, Tehran, Iran
6 Tuberculosis and Pediatric Infectious Research Center, Arak University of Medical Sciences, Arak, Iran

Correspondence Address:
Masoomeh Sofian
Tuberculosis and Pediatric Infectious Research Center, Arak University of Medical Sciences, Arak
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2229-3485.134318

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Purpose : Hepatitis B virus (HBV) vaccination is recommended for all human immunodeficiency virus (HIV)-infected patients without HBV immunity. However, serological response to standard HBV vaccination is frequently suboptimal in this population and the appropriate strategy for revaccination of HIV-infected nonresponders remained controversial. We aimed to determine the serological response to one booster dose of HBV vaccine given by intradermal (ID) or intramuscular (IM) route in HIV-positive nonresponders to standard HBV vaccination. Materials and Methods : In this study, 42 HIV-infected nonresponders were enrolled. We randomized them to receive either 10 μg (0.5 mL) for ID (20 cases) or 20 μg (1 mL) for IM (22 cases) administration of HBV vaccine as a one booster dose. After 1 month, anti-HBs titer was checked in all cases. A protective antibody response (seroconversion) defined as an anti-HBs titer ≥10 IU/L. Results: Seroconversion was observed in 47.6% of subjects after 1 ID dose. A total of 30% showed antibody titers above 100 IU/L. Except one case, all responders had CD4 + >200 cells/mm 3 . Mean anti-HBs titer was 146.5 ± 246 IU/L. After the one IM booster dose, seroconversion was observed in 50% of cases. A total of 36.3% of subjects had anti-HBs ≥100 IU/L. All responders had CD4 + >200 cells/mm 3 , except one case. Mean anti-HBs titer was 416.4 ± 765.6 IU/L. Responders showed significantly higher CD4 + cell counts, in comparison to nonresponders (P < 0.001). Conclusions: One booster dose administered IM or ID to HIV-infected nonresponders resulted in similar rates of seroconversion, overall response rate 50%. However, higher anti-HBs titers observed more frequently in IM group.

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