What should you know about vaccine against pertussis?

Pertussis, also called whooping cough, is a contagious infection that can cause coughing fits. Babies and people with some health conditions can become seriously unwell. Vaccination trains the immune system to respond more quickly, but protection can change over time.

The recommended schedule depends on age, previous doses, pregnancy and local guidance. [Childhood Immunisation](/treatments/preventive-care-and-vaccination/childhood-immunisation/) helps families keep records and identify missed doses.

Check the child’s or adult’s immunisation record with a clinician. Ask about catch-up doses, vaccination during pregnancy when relevant, and ways to reduce exposure around a newborn. Avoid sharing cups or close face-to-face contact with someone who is coughing.

A persistent or worsening [Cough](/symptoms/cough/) should be assessed, particularly in a young baby. Antibiotics may be prescribed in selected cases; read about [Antibiotic Treatment](/treatments/medical-management/antibiotic-treatment/).

Get urgent help if coughing causes blue or grey lips, pauses in breathing, choking, marked exhaustion or difficulty feeding. A baby with breathing changes needs prompt assessment even without a dramatic cough.

Contact a clinician for a cough that comes in repeated bouts, vomiting after coughing, or fever that persists. [Fever](/symptoms/fever/) in a young infant should be discussed urgently.

Ask which vaccine formulation and schedule apply, whether any dose is overdue, how to protect a newborn at home, and whether a current cough needs testing or treatment.