What Is Whooping Cough?

Whooping cough, medically known as pertussis, is a highly contagious respiratory infection caused by the bacteria Bordetella pertussis.

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It affects people of all ages but is particularly dangerous for infants and young children. Understanding whooping cough can help you recognize its symptoms, seek treatment promptly, and take steps to prevent its spread.

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Symptoms of Whooping Cough

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Whooping cough typically begins with mild, cold-like symptoms that appear 7–10 days after exposure.¹ These early symptoms include:

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• Runny nose
• Mild cough
• Low-grade fever

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As the infection progresses, the coughing becomes more severe, often occurring in fits or spells. During these fits, individuals may struggle to breathe and make a "whooping" sound as they inhale. This distinctive sound gives the illness its name. Other symptoms during this phase include:

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• Vomiting after coughing
• Fatigue due to frequent coughing
• Red or bluish face from prolonged coughing

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In infants, symptoms may be less obvious. Instead of the classic "whoop," they might experience pauses in breathing, which requires immediate medical attention.

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How Does Whooping Cough Spread?

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Whooping cough spreads through respiratory droplets when an infected person coughs, sneezes, or talks. It is highly contagious, especially during the early stages when symptoms resemble a common cold.

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Close contact with an infected person significantly increases the risk of transmission, making households and schools common places for outbreaks.

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When to Seek Medical Help

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If you or your child experience prolonged coughing fits, difficulty breathing, or other severe symptoms, consult a healthcare provider immediately. Early diagnosis can prevent complications and help keep others safe.

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By staying informed and even vaccinated against whooping cough, you can protect yourself and your community.

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The information on this site is for informational purposes only and should not replace direct medical advice, diagnosis, or treatment from your doctor or another qualified healthcare provider.

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Sources: 

“Whooping cough.” Mayo Clinic.

“About Whooping Cough.” The Centers for Disease Control.