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Vaccine. 1997 Jul;15(10):1095-100.

Selective unresponsiveness to HBsAg vaccine in newborns related with an in utero passage of hepatitis B virus DNA.

Author information

  • 1Unité d'Immunologie Microbienne, Hôpital Antoine Béclère, WHO Center of Reference and Research for Viral Hepatitis, Clamart, France.

Erratum in

  • Vaccine 1998 Oct;16(16):1593.


Thirty four out of 158 (22%) newborns to mothers chronically infected by the hepatitis B virus (HBV) did not produce antibodies (Ab) to HBsAg 1 month after the last injection of the HBV vaccine supplemented with HBV specific immunoglobulins. At birth, HBV genome was detected by polymerase chain reaction (PCR) in the peripheral blood mononuclear cells (PBMC) of a large majority (28 out of 34) of these non-responder newborns but never in the other newborns who responded to the HBsAg vaccine. HBV genome was detected in serum, only in some cases (nine out of 34) and never in the absence of HBV DNA in PBMC. For nine out of 14 followed newborns, the absence of response was transitory since anti-HBs Abs appeared after 15 months, without booster, while the HBV genome had disappeared. Unresponsiveness was specific to the HBV envelope protein since all late responders and 15-months-non-responders to the HBsAg vaccine produced normal levels of Abs to the three poliovirus serotypes, to tetanus toxoid and to the pneumococcus polysaccharides. An in utero induced immune tolerance to low doses of HBsAg appears as the most plausible hypothesis to explain this unresponsiveness to HBV vaccine.

[PubMed - indexed for MEDLINE]
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