Understanding What Causes Pertussis

The question asks about the cause of pertussis. Pertussis is a highly contagious respiratory disease. It is caused by a specific type of bacteria called Bordetella pertussis. This bacterium infects the lining of the airways, leading to severe coughing fits.

Pertussis and Whooping Cough Explained

Pertussis is commonly known by another name: whooping cough. This name comes from the characteristic 'whooping' sound a person makes when they try to inhale after a coughing fit. So, while bacteria *cause* pertussis (whooping cough), "Whooping cough" is essentially the disease itself, or another name for pertussis.

Let's look at the options provided:

• Malaria: Malaria is a serious disease caused by a parasite transmitted through mosquito bites. It is not related to pertussis.
• Chicken pox: Chickenpox is a viral infection that causes an itchy rash with small, fluid-filled blisters. It is not related to pertussis.
• Dengue: Dengue is a viral infection transmitted by mosquitoes, causing flu-like symptoms. It is not related to pertussis.
• Whooping cough: This is the common name for pertussis. Therefore, if asked what causes pertussis in the context of these options, "Whooping cough" is the intended answer, referring to the disease itself.

In summary, pertussis is a bacterial infection, and its common name is whooping cough. Among the given options, "Whooping cough" is the term that identifies the disease known as pertussis.