Hepatitis B vaccine effectiveness in the face of global HBV genotype diversity
Recombinant hepatitis B vaccines are of the A2 genotype; one of ten known genotypes whose distribution varies globally. Reports of rare HBV infections in blood donors with an imbalance of non-A2 genotype HBV in vaccinated subjects have raised questions about the cross-protection afforded by HBV-A2 v...
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Published in | Expert review of vaccines Vol. 10; no. 12; pp. 1709 - 1715 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
England
Taylor & Francis
01.12.2011
Expert Reviews Ltd Informa Healthcare |
Subjects | |
Online Access | Get full text |
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Summary: | Recombinant hepatitis B vaccines are of the A2 genotype; one of ten known genotypes whose distribution varies globally. Reports of rare HBV infections in blood donors with an imbalance of non-A2 genotype HBV in vaccinated subjects have raised questions about the cross-protection afforded by HBV-A2 vaccines. Infections in HBV vaccinees were asymptomatic and transient, indicating that vaccination prevented clinical disease. Preclinical data demonstrate cross-reactivity and cross-protection by A2 vaccines against non-A2 HBV genotypes. Substantial improvements in HBV control have been demonstrated in countries with diverse genotype distribution that have introduced universal childhood HBV vaccination programs. Available data show that current HBV-A2 vaccines are highly effective in preventing infections and clinical disease caused by all known HBV genotypes. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 content type line 14 ObjectType-Feature-3 ObjectType-Review-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2 ObjectType-Review-3 |
ISSN: | 1476-0584 1744-8395 1744-8395 |
DOI: | 10.1586/erv.11.151 |