Difference Between Whooping Cough And Vs Croup

Whooping cough and croup are both respiratory infections that primarily affect children. While they have similar symptoms, such as coughing and difficulty breathing, they are caused by different bacteria or viruses and require different treatment approaches.

In this article, we will delve into the details of both conditions, exploring their causes, symptoms, diagnosis, and treatment options. By the end, you should have a clear understanding of the difference between whooping cough and croup.

Whooping Cough

Whooping cough, also known as pertussis, is a highly contagious respiratory infection caused by the bacterium Bordetella pertussis. It primarily affects infants and young children, but it can also occur in adolescents and adults. The infection spreads through respiratory droplets when an infected person coughs or sneezes.

Difference Between Whooping Cough And Vs Croup


The symptoms of whooping cough usually develop in stages and can last for weeks. Initially, they mimic the common cold, with a runny nose, mild cough, and low-grade fever. After a week or two, the cough becomes more severe and is characterized by a series of rapid coughs followed by a high-pitched “whoop” sound when the person inhales. Other symptoms may include vomiting, exhaustion, and turning blue from lack of oxygen.


To diagnose whooping cough, a doctor may perform a physical examination, evaluate the symptoms, and order laboratory tests. A common diagnostic test is a polymerase chain reaction (PCR) test, which detects the genetic material of the bacteria in a sample taken from the nose or throat. Blood tests may also be done to check for the presence of specific antibodies.

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Antibiotics, such as erythromycin or azithromycin, are typically used to treat whooping cough. Early treatment can help reduce the severity of symptoms and prevent the spread of the infection to others. Medications to alleviate cough and fever may also be prescribed. It is important for infected individuals to stay away from others, especially infants and young children, to prevent transmission.

Difference Between Whooping Cough And Vs Croup


Croup is a viral infection that causes inflammation of the upper airway, including the voice box and windpipe. It is most commonly caused by the parainfluenza virus, although other respiratory viruses can also be responsible. Croup is most common in children between the ages of 6 months and 3 years.


The hallmark symptom of croup is a harsh, barking cough that resembles the sound made by a seal. Other symptoms may include a hoarse voice, difficulty breathing, and a low-grade fever. Croup symptoms are often worse at night and tend to improve during the day.


Croup is usually diagnosed based on the characteristic symptoms and a physical examination. The doctor may listen for a distinctive barking cough and wheezing sounds when the child breathes. In some cases, a chest x-ray or throat swab may be done to rule out other possible causes.


In most cases, croup can be managed at home with supportive care. This may include keeping the child calm, providing plenty of fluids, and using a cool mist humidifier to moisten the air. If symptoms are severe or breathing becomes difficult, medical intervention may be necessary. In such cases, the doctor may prescribe corticosteroids to reduce airway inflammation or administer inhaled medications to open up the airways.

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Frequently Asked Questions

1. Can adults get croup?

While croup is most common in young children, adults can also get the infection. However, it tends to be less severe in adults and is often mistaken for a regular cold or cough.

2. Is whooping cough preventable?

Yes, whooping cough is preventable through vaccination. The pertussis vaccine is usually given in combination with vaccines for diphtheria and tetanus (DTaP). It is recommended for infants, children, adolescents, and adults.

3. How long is the contagious period for whooping cough?

A person with whooping cough is contagious for approximately two weeks after starting antibiotic treatment or about three weeks without treatment.

4. Can croup lead to complications?

In rare cases, croup can lead to complications such as pneumonia or respiratory failure. Seek medical attention if your child has severe breathing difficulties or shows signs of dehydration or fatigue.

Final Thoughts

While whooping cough and croup share some similarities in terms of symptoms, they are distinct respiratory infections caused by different pathogens. Whooping cough is caused by the bacterium Bordetella pertussis, while croup is usually caused by a viral infection. Understanding the differences between these two conditions is essential for accurate diagnosis and appropriate treatment. If you suspect that you or your child has either whooping cough or croup, it is important to consult a healthcare professional for proper evaluation and guidance.

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