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Introduction Hepatitis B virus (HBV) is probably the only vaccine-preventable virus transmitted from one person to the other by blood transfusion, sex, and contact with blood and blood products. HBV is highly transmissible, where the infection has been noted to transmit among the household contacts. HBV is also transmitted from the mother to the child through the transplacental barrier. Clinical infection with HBV may be chronic and could remain for a lifetime. Most exposures with HBV are automatically resolved, but a few infected peop
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