Tuberculosis : A Long And Thin Acid Fast Rod

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Tuberculosis is often called “TB.” It spreads when people who have active TB in their lungs cough or sneeze and the droplets come in contact with another person. TB is one of the leading causes of death. This usually results in about 1.8 billion people a year becoming infected with the bacterial disease. Myobacterium tuberculosis is the cause of tuberculosis in most patients. It is a long and thin acid-fast rod. It is a strict aerobe and is not referred to as a gram-positive or gram-negative because its acid-fast nature is much more relevant in a clinical setting. It grows very slowly; with a generation time of 15 to 20 hours, a period of up to 6 weeks is required for colonies to appear in culture. Robert Koch identified that M.…show more content…
Tuberculosis reemerged in the United States and other developed countries in the mid-1980s, fueled by the HIV epidemic and its resistance to multiple antibiotics. That resurgence was eventually quelled again in the developed world. However, in Southeast Asia, the Western Pacific region, and Africa, a multidrug-resistant TB epidemic is raging. Worldwide, 2 billion people-nearly one –third of the world’s population are currently infected. The cause of tuberculosis is primarily the bacterial species Myobacterium tuberculosis, informally called the tubercle bacillus. The agent of tuberculosis is transmitted almost exclusively by fine droplets of respiratory mucus suspended in the air. The TB bacterium is highly resistant and can survive for 8 months in fine aerosol particles. Although larger particles become trapped in mucus and are expelled, tinier ones can be inhaled into the bronchioles and alveoli. This effect is especially pronounced among people sharing small closed rooms with limited access to sunlight and fresh air. The epidemiological patterns of M. tuberculosis infection vary with the living conditions in a community or an area of the world. Factors that significantly affect people’s susceptibility to tuberculosis are inadequate nutrition, debilitation of the immune system, poor access to medical care, lung damage, and their own genetics. Put simply, TB is an infection of poverty. People in developing countries are often infected as

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