Tuberculosis (TB) continues to pose a threat to public health, despite popular misconceptions that TB is a disease of the past. The facts, however, are that nearly two billion people - one-third of the world's population - are infected with latent TB. Drug-resistant strains of TB are spreading globally, including extensively drug-resistant (XDR-TB), which raises concerns of a future epidemic of virtually untreatable TB. The strain has been identified in the U.S. [click link for full article]
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