Tuberculosis Is An Infectious Disease

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World Health Organization estimated one-third of the world’s population is suffering with this disease at present even though there is vaccine widely available, there is still a high morbidity rate in some countries every year. Africa, Western and Southeast Asia are the most affected areas, making approximately 86 percent of tuberculosis cases in the world. This research paper will discuss, tuberculosis in New Zealand. It will discuss the biology of the bacterium, risks factors and the importance of immunisation and prevention.
Tuberculosis is an infectious disease caused by a bacterium called Mycobacterium tuberculosis (Marieb, 2012). Tuberculosis is a contagious infection that begins in the lungs and spread to other organs in the body including the kidneys, brain and bones. Tuberculosis is spread by inhaling airborne droplets from an infected person. These airborne particles are spread when the infected person sneezes, coughs or laughs. Tuberculosis cannot be spread, by contact. Tuberculosis is caused by a rod shaped bacterium or bacillus called Mycobacterium tuberculosis. These droplets are discharged into the air by a person with active tuberculosis (Britannica, 2012). The spreading progress is very effective. These droplets can remain in the air for several hours in addition it only needs ten bacilli to start an infection. When the infected air is breathed in, the bacilli enter the lungs through the bronchioles and into the alveoli. The bacilli then infect the alveoli
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