Scaling up of latent tuberculosis infection treatment for close contacts of tuberculosis in Taiwan

Illustration of how to estimate the beginning of the period of infectiousness of persons with tuberculosis, by index case characteristics. AFB = Acid-fast bacilli; TB = tuberculosis.

The flow chart for latent tuberculosis infection treatment. (Revised and translated from appendix 14-2 from Manual for TB Control in Taiwan, http://www.cdc.gov.tw/public/Attachment/03111034771.doc). AP view = anteroposterior view; CXR = chest radiography; LTBI = latent tuberculosis infection; PA view = posteroanterior view; TB = tuberculosis; TST = tuberculin skin test. Data have been obtained from: Chapter 10, Taiwan Guidelines for TB Diagnosis and Treatment, 4th edition. http://www.cdc.gov.tw/public/Attachment/132413462971.pdf; Chapter 14, Manual for TB Control in Taiwan, http://www.cdc.gov.tw/public/Attachment/0219495471.pdf; Chapter 8, Taiwan Guidelines for TB Diagnosis and Treatment, 4th edition.