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  • Diphtheria
  • Tdap for Adolescents & Adults
  • Pertussis
  • Tdap for Adolescents & Adults
  • Tetanus
  • Tdap for Adolescents & Adults

If a teen or adult mistakenly received a dose of Td when they should have received Tdap, what is the optimal time to give the missing Tdap dose?

As soon as possible, even if it is the same day.

Last reviewed: March 31, 2022

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