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This vaccine protects against diphtheria, tetanus, pertussis, and polio.


Active ingredients:

Diphtheria toxoid, tetanus toxoid, inactivated pertussis toxin, filamentous hemagglutinin (a cell surface protein), pertactin (outer membrane protein), inactivated type 1 poliovirus, inactivated type 2 poliovirus, and inactivated type 3 poliovirus.

Inactive ingredients:

Amounts are based on a 0.5 mL dose

Salts: help maintain the stability and pH of the vaccine

Adjuvants: strengthen the immune response to the vaccine

Antibiotics: used to prevent contamination during manufacturing


Relevant Terms:

  • Antibiotics: substances that kill bacteria or prevent them from dividing. Antibiotics are used in some vaccines to prevent contamination during the manufacturing process.

  • Antibody: a protein made by the immune system in response to a foreign particle (antigen). These proteins circulate in the blood and help defend the body against the substance.

  • Antigen: This is any substance that triggers the immune system to create antibodies. For example, allergens such as pollen are antigens.

  • Antitoxin: an antibody that neutralizes toxins

  • Bacterium: The singular of bacteria (one bacterium, two bacteria)

  • Emulsifier: a substance that helps to keep the ingredients mixed together

  • pH: a measure of how acidic or basic a solution is. The scale ranges from 0 (very acidic) to 14 (very basic). A pH of 7 is neutral.

  • Toxoid: an inactive version of a toxin produced by a bacterium. The body is able to make antitoxin without being exposed to the actual toxin. Toxoids are not toxic.

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Last updated: Mar. 4, 2023

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