• In about 0% of cases, the infection progresses and produces
active tuberculosis. In 00% of cases when a host has an effective
cell-mediated immune response, the infection is contained. When
patients with active TB, are left untreated, they can die as a result
of progression and complications.
• Although there may be minimal symptoms and the diagnosis is
suspected because of an abnormal chest radiograph, most
patients with pulmonary TB present with chronic cough,
prolonged fever, night sweats, anorexia, and weight loss.