What is the name of the phase of whooping cough associated with uncontrollable coughing?

Whooping cough, also known as pertussis, is a highly contagious disease which causes classic spasms (paroxysms) of uncontrollable coughing, followed by a sharp, high-pitched intake of air which creates the characteristic whoop that is reflected in the disease's name.
Whooping cough is caused by a bacteria called Bordetella pertussis . B. pertussis causes its most severe symptoms by attaching itself to those cells in the respiratory tract that have cilia. Cilia are small, hair-like projections that beat continuously and serve to constantly sweep the respiratory tract clean of such debris as mucus, bacteria, viruses, and dead cells. When B. pertussis interferes with this normal, cleansing function, mucus and cellular debris accumulate and cause constant irritation to the respiratory tract, triggering coughing and increasing further mucus production.

Whooping cough exists throughout the world. While people of any age can contract the disease, children under the age of two are at the highest risk for both the disease and for serious complications and death. Apparently, exposure to B. pertussis bacteria earlier in life gives individuals some immunity against infection with it later on. Subsequent infections resemble the common cold .

Read more: http://www.healthofchildren.com/U-Z/Whooping-Cough.html#ixzz4brvsnamo

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