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Why is pre-immunization serologic testing for Hepatitis B surface Antigen and Antibody necessary?

April 26, 2017Antibody antigen necessary pre-immunization serologic Testing

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Why is pre-immunization serologic testing for Hepatitis B surface Antigen and Antibody necessary?

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This testing will identify those already infected or immune, for whom vaccine will confer no benefit. Testing will also assist in the medical management and contact follow-up of those individuals found to be already infected, and will prevent the mistaken belief that they pose no risk to others.