April 1, 2009 1:22 PM

Drug-resistant TB may 'spiral out of control,' U.N. says

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. Dr. Margaret Chan, the director-general of the World Health Organization, urged health officials from 27 countries to recognize the warning signs of what looms ahead.

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