
DTaP The DTaP vaccine protects against: diphtheria — a serious infection of the throat that can block the airway and cause severe breathing difficultytetanus (lockjaw) — a nerve disease, which can occur at any age, caused by toxin-producing bacteria contaminating a woundpertussis (whooping cough) — a respiratory illness with cold symptoms that progress to severe coughing (the "whooping" sound occurs when the child breathes in deeply after a se