MedGen

The asymptomatic presence of Mycobacterium tuberculosis in the body, which is determined by a positive result to a tuberculin skin test or interferon-gamma release assay. [from NCI]

Infections caused by bacteria that retain the crystal violet stain (positive) when treated by the gram-staining method. [from MONDO]

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]

Infection due to organisms from the genus Mycobacteria. [from NCI]

An infectious process caused by actinomycetales which is an order of Actinobacteria. [from NCI]