(CNBC) The world's best drug for treating malaria, a medicine that is the key to saving millions of lives in Africa and beyond, is losing its efficacy in a much larger swath of territory than was previously known, according to research that was released Friday.
The study, in The Lancet Infectious Diseases, a medical journal, raises the troubling prospect that resistance to the drug, artemisinin, might one day severely hamper treatment of a disease that kills hundreds of thousands of people every year.
"This should focus minds," said Charles Woodrow, one of the authors of the study. "We have to eliminate these very resistant parasites. The fear is that if we don't, we would reverse all the gains that have been made."
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