Etiology: Pertussis is caused by Bordetella Pertussis t he bacteria invades the nose and throat and then the trachea followed by the bronchial tubes of the lungs. People usually contract the bacteria by the air when an septic person coughs or sneezes. Then universe inhale or come in contact with the infected saliva. People who have been immunized in the past whitethorn still develop infection but it is usually secondment or very mild that is another cause of whooping cough. The incuba...If you redness to get a full essay, order it on our website: BestEssayCheap.com
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