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Journal of Tuberculosis and Lung Disease ›› 2020, Vol. 1 ›› Issue (3): 276-280.doi: 10.3969/j.issn.2096-8493.2020.03.014

• Review Articles • Previous Articles     Next Articles

Research progress on the mechanism of latent tuberculosis infection progressing to active tuberculosis

MA Hui-min, ZHANG Li-fan, LIU Xiao-qing()   

  1. Division of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100730, China
  • Received:2020-11-19 Online:2020-12-30 Published:2021-01-05
  • Contact: LIU Xiao-qing E-mail:liuxq@pumch.cn

Abstract:

Latent tuberculosis infection (LTBI) is defined as a state of persistent immune response to stimulation by Mycobacterium tuberculosis antigens with no evidence of clinically manifest active tuberculosis. Up to one third of the world’s population is estimated to be infected with Mycobacterium tuberculosis, and 5%-10% of those infected people will develop active tuberculosis disease sometime during their lives. Therefore, it is of great significance for tuberculosis prevention and control to study the mechanism of LTBI progressing to active tuberculosis. We reviewed this hot issue from the aspects of Mycobacterium tuberculosis infection process, immunological changes during LTBI progressing to active tuberculosis and the risk factors that induce LTBI reactivation, etc.

Key words: Latent tuberculosis infection, Active tuberculosis, Research, Review