DPT vaccine

DPT is a combination vaccine against three infectious diseases in humans: diphtheria, pertussis (whooping cough) and tetanus. It is given in five doses between 2 months and 15 years.

Diphtheria, tetanus, and pertussis are caused by bacteria. Diphtheria and pertussis can spread from person to person. Tetanus enters the body through cuts and wounds.