Last updated on November 21st, 2019 at 01:25 pm

Diptheria (DTap, Tdap, Td)

Schedule: CDC recommends that all children  get 5 doses of DTaP (diphtheria-tetanus-pertussis) vaccine, beginning at 2 months of age. If your child misses a dose or gets behind schedule, make sure they get the next dose as soon as possible. Older children, teens, and adults should receive one dose of Tdap vaccine and after that, a Td booster dose every 10 years. 

Diphtheria once was a major cause of illness and death among children. The United States recorded 206,000 cases of diphtheria in 1921 and 15,520 deaths. Before there was treatment for diphtheria, up to half of the people who got the disease died from it.

Starting in the 1920s, diphtheria rates dropped quickly in the United States and other countries with the widespread use of vaccines. In the past decade, there were less than five cases of diphtheria in the United States reported to CDC. However, the disease continues to cause illness globally. In 2014, 7,321 cases of diphtheria were reported to the World Health Organization, but there are likely many more cases.


CDC’s Diptheria page offers accurate information and resources for all.

Information and resources for clinicians provides resources from federal agencies for the general public and their communities about vaccines across the lifespan.

Children’s Hospital of Philadelphia provides questions and answers about Diptheria (DTap, Tdap, Td) from the Vaccine Education Center.

Immunization Action Coalition offers free information and downloads for healthcare providers, parents and coalitions.



Children's Hospital of Philadelphia on DTap

2019 Pennsylvania Immunization Coalition
204 St. Charles Way, Unit 303E York, Pennsylvania 17402
PH: 484-446-3040 FX: 484-446-3255 Email:

The PAIC web site provides immunization information for your general knowledge and is in no way intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding immunizations.

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