MedGen

Tuberculosis (TB) is a contagious-infectious disease caused mainly by <i>Mycobacterium tuberculosis</i> that in most individuals is usually asymptomatic but that in at risk individuals (e.g. with diabetes or with HIV infection) can cause weakness, fever, weight loss, night sweat, and respiratory anomalies such as chronic cough, chest pain, hemoptysis or respiratory insufficiency. [from ORDO]

A sudden movement downward, usually resulting in injury. [from NCI]