OVERVIEW
Tetanus, Diptheria, and Pertussis (Tdap) for adult use is indicated for active immunization against tetanus, diphtheria, and pertussius in adults and children 7 years of age or older. Tetanus or diphtheria infection may not confer immunity; therefore, initiation or completion of active immunization is indicated at the time of recovery from these infections. A booster dose of 0.5ml of Tdap Toxoid is given ten years after completion of primary immunization and every ten years thereafter.