Part one of term paper
(TB) is an infectious disease caused by a germ (bacterium) called Mycobacterium . This germ primarily affects the lungs and may infect anyone at any age. In the United States, the number of TB cases steadily decreased until 1986 when an increase was noted; TB has continued to rise since. Today, ten million individuals are infected in the U.S ...

Part two of term paper
... person is usually infected by inhaling the germs which have been sprayed into the air by someone with the active disease who coughs. However, inhaling the germ does not usually mean you will develop active disease. A person's natural body defenses are usually able to control the infection so that it does not cause disease. In this case, the person would be infected, but not have active disease. Only about 10% of those infected will actually develop TB in their lifetimes. Active disease can oc ...