11 doctors weighed in:
What is tdap and dtap, and why is the difference needed?
11 doctors weighed in

Dr. Yash Khanna
Family Medicine
4 doctors agree
In brief: DifferentFormulation
Dtap is the pediatric vaccine given to children from 2 months to 6 years of age Tdap is given from 11years on and adults Both are different formulation

In brief: DifferentFormulation
Dtap is the pediatric vaccine given to children from 2 months to 6 years of age Tdap is given from 11years on and adults Both are different formulation
Dr. Yash Khanna
Dr. Yash Khanna
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Dr. Barry Bergman
Pediatrics
3 doctors agree
In brief: Age
They are used for different age groups.
Dtap is a dose to be given to infants and young children. The tdap is used for a booster shot for the teenager and adults. Both are to protect against tetanus, diphtheria, and pertussis.

In brief: Age
They are used for different age groups.
Dtap is a dose to be given to infants and young children. The tdap is used for a booster shot for the teenager and adults. Both are to protect against tetanus, diphtheria, and pertussis.
Dr. Barry Bergman
Dr. Barry Bergman
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Dr. James Ferguson
Pediatrics
2 doctors agree
In brief: Immune response
The DTaP (big D) signifies a full dose of diphtheria antigen along with the other components,which is given to the child's emerging immune system to stimulate the immune system. The TdaP (little d) represents a vaccine with less diphtheria antigen, because a kids dose would bring on more side effects but not more protection.

In brief: Immune response
The DTaP (big D) signifies a full dose of diphtheria antigen along with the other components,which is given to the child's emerging immune system to stimulate the immune system. The TdaP (little d) represents a vaccine with less diphtheria antigen, because a kids dose would bring on more side effects but not more protection.
Dr. James Ferguson
Dr. James Ferguson
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