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Tb - Epidemiology and Nursing Role

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Tuberculosis: Epidemiology and Nursing Role

Tuberculosis has been a persistent threat to the human race as far back as Hippocrates (c.460-c.370 BC). Globally, tuberculosis has infected millions during waves, often killing scores of people at a time, and then receding giving it an almost supernatural quality (Daniel, 2006). In recent history tuberculosis has been recorded in all corners of the world, and currently infects one third of the global population. In 2012, TB was responsible for killing 1.3 million people, making it the second largest fatal disease next to AIDS. The purpose of this paper is to describe tuberculosis, explain contributing factors, describe the disease in relation to the epidemiologic triangle, and finally discuss the role of community nurses in the prevention and treatment of the disease.
Tuberculosis is a respiratory disease spread through the air. This is of course a simple definition and robs the disease of its true nature. In order to fully understand tuberculosis one must leverage the rules of communicable disease investigations. In that vein, tuberculosis is an infectious disease caused by mycobacterium, specifically mycobacterium tuberculosis. TB, as it is often referred, is indeed spread through infected sputum, carried through the air from a host to a new host. Once in the lungs, the bacteria become latent or active. Latent TB infection means the patient is not symptomatic, yet will test positive on skin test. The second route leads to active tuberculosis disease. A patient who has active tuberculosis disease will show a variety of symptoms including weakness, chills, loss of appetite, night sweats, and of course respiratory symptoms such as persistent cough of three weeks or more, bloody sputum, and chest pain (CDC). The World Health Organization reports the combined manifestations of TB infect approximately one third of the

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