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Published online 16 March 2004 | Nature | doi:10.1038/news040315-3

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WHO urges world to fight TB 'super-strains'

Survey highlights threat of drug-resistant tuberculosis.

The World Health Organization has sounded a warning over the growing prevalence of drug-resistant tuberculosis (TB). Unless action is taken, these 'super-strains' of the disease could render existing therapies useless, public-health experts say.

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