Tuberculosis (TB), an infectious disease induced by Mycobacterium tuberculosis, is one of the primary public health threats all over the world. Since the prevalence of first-line anti-TB agents, the morbidity and mortality issues of TB descended obviously. Nevertheless, the emergences of multidrug-resistant (MDR) and extensively drug-resistant (XDR) strains, the double prevalence of HIV-TB co-infection, and the insufficiency of plentiful health care have led to an increased incidence of TB. It is noted that current drugs for treating TB have proved unsustainable in the face of highly resistant strains. Fortunately, five categories of new drugs and candidates with new mechanisms of action have emerged in the field of anti-TB research after decades of stagnation in the progression of anti-TB drugs. In this paper, the research status of these promising anti-TB drugs and candidates are reviewed, emphasizing the challenges to be addressed for efficient development of future TB therapies.
Keywords: Anti-TB drugs; Extensive drug-resistance (XDR); Future challenges; Multidrug-resistance (MDR); Tuberculosis (TB).
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