The Investigation of HBV Pre-S/S Gene Mutations in Occult HBV Infected Blood Donors with anti-HBs Positive

<div>The alignment of amino acid substitutions in the pre-S/S region of anti-HBs (+) and anti-HBs (−) OBI sequences. The Arabic prefix indicated the number of substitutions at each site in OBI sequences. OBI, occult hepatitis B virus infection; anti-HBs, hepatitis B surface antibody.</div>

Canadian Journal of Infectious Diseases and Medical Microbiology

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Figure 2

Figure 2: The Investigation of HBV Pre-S/S Gene Mutations in Occult HBV Infected Blood Donors with anti-HBs Positive 