What should you know about DTaP and whooping cough?

DTaP is a combined childhood vaccine against diphtheria, tetanus and pertussis, the medical name for whooping cough. Protection is built through the routine childhood immunisation schedule and may need later doses according to local guidance. Vaccination lowers the chance of illness but does not make every cough a vaccine-preventable illness. Whooping cough often begins like a mild cold before bouts of cough develop; vomiting, exhaustion or a noisy intake of breath can follow. Babies may have breathing pauses instead of a classic whoop.

Check the child’s vaccination record and arrange a discussion with a clinician if a dose was missed, delayed or unclear. Keep a child with a suspected infectious cough away from infants and vulnerable people until a clinician advises otherwise. Offer frequent fluids and let the child rest; avoid giving cough medicines or antibiotics without professional advice. A clinician may prescribe antibiotic treatment to reduce spread or manage the infection, especially when it is recognised early. Read more about [Childhood Immunisation](/treatments/preventive-care-and-vaccination/childhood-immunisation/) and [Antibiotic Treatment](/treatments/medical-management/antibiotic-treatment/).

Seek urgent medical help if a child struggles to breathe, has blue or grey lips, becomes unusually sleepy, cannot keep fluids down or has repeated breathing pauses. Contact a clinician promptly for severe or worsening coughing bouts, a persistent fever, or a cough after close contact with someone diagnosed with whooping cough. A [Cough](/symptoms/cough/) or [Fever](/symptoms/fever/) page can help you describe symptoms, while [Whooping Cough](/conditions/whooping-cough/) explains the condition in more detail.

Ask which DTaP doses are due, whether testing is needed, how long the child may be contagious, and which symptoms should trigger emergency help.