Abstract
Thirty-two participants, aged between 3-18 years, born to hepatitis B surface antigen (HBsAg)-positive mothers and vaccinated at birth were analyzed for hepatitis B virus (HBV) infection. Overall, 56% had anti-HB titers ≥10 IU/L; five were positive for antibodies to the core antigen (anti-HBc), and two of these were also positive for HBsAg/DNA. One of the HBsAg/anti-HBc double-negative children presented with an unusual occult infection (HBV DNA-positive). No known vaccine escape mutations were detectable. Our data suggest that the vaccine protected 93.8% of children in this high-risk group against chronic HBV infection. Occult infections should be considered even in countries with low endemicity and high vaccination coverage.
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Acknowledgements
The authors want to acknowledge Dr. Verena Muzio from the Center for Genetic Engineering and Biotechnology for her valuable comments. Also, the authors are grateful for the support of the Cuban Program for the Control and Prevention of hepatitis viruses. For the work done in Luxembourg we acknowledge the financial support of the Ministry of Foreign and European Affairs.
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Rodríguez Lay, L., Bello Corredor, M., Montalvo Villalba, M.C. et al. Hepatitis B virus infection assessed 3 to 18 years after vaccination in Cuban children and adolescents born to HBsAg-positive mothers. Arch Virol 162, 2393–2396 (2017). https://doi.org/10.1007/s00705-017-3365-6
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DOI: https://doi.org/10.1007/s00705-017-3365-6