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Vaccination against hepatitis B virus (HBV) is recommended for health care workers (HCWs), but it is not clear whether HBV vaccination is required for HCWs who have isolated antibody to hepatitis B core antigen (anti-HBc), or whether prevaccination screening for anti-HBc is needed in HCWs. Among 1812 HCWs, subjects with isolated anti-HBc and those with no HBV markers (control) were screened. The anamnestic...
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