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What is the immunologic advantage of giving the new Tdap over another dose of DTaP?

April 26, 2017advantage dose dtap giving immunologic tdap

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What is the immunologic advantage of giving the new Tdap over another dose of DTaP?

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DTaP is not approved for use in persons 7 years of age and older. Safety and efficacy data in persons 10 – 64 years of age are based on Tdap, which contains less diphtheria toxoid and pertussis antigen. These components are generally more reactogenic in older children, adolescents and adults.