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Instances of drug-resistant HIV increase among South African doctor's patients

Wednesday, December 30, 2009 | 4:55 p.m. CST

EDITOR'S NOTE: Once-curable diseases such as tuberculosis and malaria are coming back, as germs rapidly mutate to form aggressive strains that resist drugs. The reason: The misuse of the very drugs that were supposed to save us has built up drug resistance worldwide. Fourth in a five-part series.

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