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Aims/Objectives: To clarify transfusion incidence of hepatitis B virus (HBV) infected blood negative for mini pool‐nucleic acid amplification testing (MP‐NAT).
Background: Japanese Red Cross (JRC) blood centres screen donated blood to avoid contamination with HBV. However, a low copy number of HBV may be overlooked.
Methods/Materials: In Hyogo‐Prefecture, JRC blood centres screened 787 695 donations...