Management of contacts of MDR TB and XDR TB patients
The spread of tuberculosis (TB) occurs mainly in settings where prolonged contact between people promotes the transmission from an infectious ‘source case’ with TB disease to one or several ‘contacts’. A main component in stopping the spread of TB is to rapidly diagnose infectious TB disease cases and treat these so the patient can be cured and the chain of transmission will be stopped. As part of the prevention and control efforts for TB it is also important to trace people who have been in contact with the source case and are likely to have been exposed to infection. Screening of identified... contacts for their infection status will allow detection of latent TB infection (LTBI) or TB disease. Diagnosing LTBI aims at identifying individuals who would benefit from preventive therapy or follow-up with careful clinical observation, thus reducing future development of TB disease or promoting early detection.