Abstract
Objective
To assess the immune response to hepatitis B vaccination in HIV infected children using 4 double dose schedule administered at 0-1-2-6 mo.
Methods
In a prospective observational study, 40 HIV infected children were vaccinated with hepatitis B virus (HBV) vaccine (20 mcg, 1 ml IM at anterolateral aspect of thigh of recombinant DNA vaccine) at 0-1-2-6 mo. Anti-HBsAb titre were assessed 4–8 wk after the last dose. Clinical severity was assessed according to WHO staging. Immune status of the patients was assessed using CD 4+ counts before the vaccination.
Results
Of the total 40 patients, 33 (28 boys, 5 girls) completed the study. Six patients were in pre-antiretroviral therapy (ART) care while 27 were receiving ART for a mean duration of 2.06 y. Ten patients belonged to WHO clinical stage 1, and 17, 2 and 4 patients to WHO clinical stage 2, 3 and 4 respectively. Median CD4+ cell count was 738/mm3 and 28 patients had mild or no immunosuppression. Out of the total 33 patients who completed followup, only 2 patients (6 %) did not seroconvert (Anti HBsAb titre at end of study <10 IU/L), the rest (94 %) achieved different levels of Anti HBsAb titre at end of study. Twenty two (66 %) patients had anti HBsAb titre more than 1000 IU/L, 8 (24 %) had titre between 100 and 1000 IU/L and one (3 %) patient had level of 10–99.99 IU/L.
Conclusions
In HIV-infected children who have no or mild immunosuppression, four dose, double dose schedule of HBV vaccine achieves very high seroconversion rates.
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Contributions
DB: Collected the data, reviewed the literature, drafted the manuscript; JC: Planned the study, helped in drafting the manuscript and will act as guarantor for the paper; RD, MJ: Carried out lab work; RAG, SR: Collected the data; AS, PK: Supervised the study.
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Bose, D., Chandra, J., Dutta, R. et al. Immune Response to Double Dose Hepatitis-B Vaccine using Four Dose Schedule in HIV Infected Children. Indian J Pediatr 83, 772–776 (2016). https://doi.org/10.1007/s12098-015-1984-z
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DOI: https://doi.org/10.1007/s12098-015-1984-z