Journal of Antimicrobial Chemotherapy (2001) 47, 117-118
© 2001 The British Society for Antimicrobial Chemotherapy
Correspondence |
Dormant tubercle bacilli: the key to more effective TB chemotherapy?
Mycobacterium Laboratory, Institute of Molecular & Cell Biology, 30 Medical Drive, Singapore 117609, Singapore
Sir,
A key problem in tuberculosis control is the persistence of Mycobacterium tuberculosis despite prolonged chemotherapy: treatment for 612 months is required to cure acute disease or eliminate latent infection. Why does it take so long to eradicate the bacilli once they reside within the human host? Development of physiological (as opposed to genetic) drug resistance could play a role. Mycobacteria are obligate aerobes. However, it has been known for years that tubercle bacilli encounter hypoxic environments in acute disease as
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