Posted: April 11th, 2017
Problem Statement Tuberculosis (TB) is an infectious disease in humans caused by Mycobacterium tuberculosis, which belongs to the same group of microorganisms as mycobacterium africanum and mycobacterium bovis. Transmission is through droplets released into the air from an infected individual through sneezing, coughing, shouting, and singing (Bynum, 2012). There are two types of this infection, which include pulmonary and extra pulmonary tuberculosis, but pulmonary TB is the most common form of post primary disease (Walker, Colledge, Ralston, & Penman, 2014). TB is one of the fatal infectious diseases with a very high morbidity and mortality rate. According to Lawn and Zumla (2011), tuberculosis accounted for about 25% of all deaths in Europe during the 19th century. Despite the improvements in housing and sanitation, the mortality rate for TB is almost the same as it was a century ago with 50% of those infected dying (World Health Organization [WHO], 2014). In 2013, approximately nine million people contracted TB, and about 1.5 million died due to the disease (WHO, 2014). Liberia, with a population of about 3.8 million has a TB prevalence of rate 420/100,000. This prevalence rate continues to rise at about 2% per year (WHO, 2010).
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