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Condition Article

Whooping cough (pertussis)

An educational overview of whooping cough, a very contagious infection of the lungs and airways that causes long bouts of coughing and can be serious for babies.

Infectious DiseaseInfectious DiseasePediatricsFull article

Also known as: pertussis, 100-day cough, pertussis

Educational information only. This explains health information to discuss with a qualified clinician; it is not a diagnosis, prescription, or treatment. Medical Information & Safety.

Overview

Educational academic overview: pertussis is caused by Bordetella pertussis; vaccination and infant protection are central public-health themes. Study material only.

Symptoms

  • long bouts of coughing
  • a 'whoop' sound when breathing in
  • runny nose early on
  • vomiting after coughing

Causes

  • infection with Bordetella pertussis bacteria, spread by droplets

Risk factors

  • being unvaccinated
  • close contact with an infected person
  • young infancy

Prevention

  • vaccination as recommended, including in pregnancy where advised
  • protecting newborns from infected contacts

Emergency warning signs

  • a baby who struggles to breathe or turns blue
  • pauses in breathing
  • severe coughing fits with exhaustion

Evaluation & tests

Educational note: clinicians assess whooping cough with history and specific tests. This library does not diagnose.

Treatment education

Educational overview: care is individualized by clinicians; early recognition matters. This library does not prescribe.

Self-care

General education: rest, fluids, and keeping infants away from infected people can help; seek care early.

When to seek care

Seek care for a persistent severe cough, especially in a baby or unvaccinated child.

Related topics

Last reviewed: 2026-01-01T00:00:00.000Z