This vaccine is for whooping cough. It contains diphtheria, tetanus, polio and Pertussis. The pertussis is the whooping cough element of this vaccination.

Pertussis, also known as “whooping cough,” can cause uncontrollable, violent coughing which makes it hard to breathe, eat, or drink. Pertussis can be extremely serious in babies and young children, causing pneumonia, convulsions, brain damage, or death. In teens and adults, it can cause weight loss, loss of bladder control, passing out, and rib fractures from severe coughing.