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DIPHTHERIA, TETANUS AND PERTUSSIS (dTpa) VACCINE ...
www.health.nsw.gov.auDIPHTHERIA, TETANUS AND PERTUSSIS (dTpa) VACCINE Information For You And Your Child Q. What are diphtheria, tetanus and pertussis? Diphtheria is a contagious and potentially life- threatening bacterial infection that causes severe breathing difficulties, heart failure and nerve damage. Tetanus is a severe, often fatal disease of the nervous system.