The world is on the cusp of an explosion of drug-resistant tuberculosis cases that could deluge hospitals and leave physicians fighting a nearly untreatable malady with little help from modern drugs, global experts said Wednesday.
"The situation is already alarming, and poised to grow much worse very quickly," said Dr. Margaret Chan, director-general of the World Health Organization.
UN: Killer strains of tuberculosis may 'spiral out of control'
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