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Chinese Journal of Antituberculosis ›› 2021, Vol. 43 ›› Issue (6): 539-541.doi: 10.3969/j.issn.1000-6621.2021.06.003

• Interpretation of Standards • Previous Articles     Next Articles

Interpretation of the new definition of extensive drug-resistant tuberculosis defined by World Health Organization

LI Ren-zhong(), RUAN Yun-zhou, LI Yu-hong   

  1. Department of Drug Resistant Tuberculosis Control, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
  • Received:2021-04-09 Online:2021-06-10 Published:2021-06-02
  • Contact: LI Ren-zhong E-mail:Lirz@chinacdc.cn

Abstract:

The definition of extensive drug-resistant tuberculosis (XDR-TB) first proposed by World Health Organization (WHO) in 2006 has played an important role in guiding the prevention and control of drug-resistant tuberculosis. With the development of new diagnostic technologies and new drugs, WHO updated the original definition of XDR-TB in January 2021. In this paper, the background, history, reasons and general principles of the new definition of XDR-TB were interpreted, and the impact and significance of the new definition for the tuberculosis control in the future were summarized, in order to provide reference for tuberculosis control workers in China.

Key words: Extensively drug-resistant tuberculosis, Concept formation, Benchmarking