Antigens: Dtap is for infants up to 7 years- the diphtheria toxoid and pertussis antigens are stronger. Tdap is for children over 10 and adults- the tetanus toxoid is the same, but the pertussis antigen and diphtheria toxoid are lessened to prevent serious reactions while boosting immunity.
Answered 9/28/2016
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Pediatric&Adult: DTaP is Pediatric vaccine and given in 5 doses starting at 2 month age and last dose given 4to 6 years of age TDap is given starting at age 11years on and adults Both DTap and Tdap prevent all three diseases Diptheria/Tetanus and Pertusis
Answered 3/26/2015
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DTap vs Tdap: DTaP = Diphtheria and tetanus toxoids with acellular pertussis vaccine for use in infants and children through age 6 years. Tdap = Tetanus and diphtheria toxoids with acellular pertussis vaccine for use in children age 7 years and older and adults. REF: https://www.immunize.org/catg.d/p2055.pdf
Answered 7/19/2020
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