Journal
CURRENT OPINION IN INFECTIOUS DISEASES
Volume 21, Issue 6, Pages 587-595Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/QCO.0b013e328319bce6
Keywords
AIDS; extensively drug-resistant tuberculosis; HIV; multidrug-resistant tuberculosis
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Purpose of review The spread of multidrug-resistant tuberculosis (MDR-TB) and extensively drug-resistant TB (XDR-TB) is a major medical and public health concern for the world. These two forms of highly drug-resistant TB threaten to make TB into an untreatable and highly fatal disease, particularly in resource-poor countries with a high prevalence of AIDS. The focus of this review is to highlight the current extent of the problem. Recent findings There is a great variability in clinical outcomes for MDR-TB, in part due to differences in the definitions of outcome measures and retrospective nature of the studies. Outcomes for XDR-TB are uniformly worse than those for MDR-TB. Summary A multifaceted approach is needed to prevent a more widespread epidemic of MDR-TB and XDR-TB. Rapid diagnostic assays to detect highly drug-resistant TB are essential in preventing delays in treatment of MDR-TB and XDR-TB and curbing their spread. Development of new drugs to effectively treat all forms of TB in a shorter period of time is urgently needed.
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