In animal tests PolyMedix's drug PMX-30063 is at least as powerful as the gold standard hospital antibiotic vancomycin at killing key strains.

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Khartoum, Sudan (CNN) -- A gold mine in the western Sudanese state of Darfur collapsed this week, killing scores of people and leaving many still unaccounted for, an official says.

CNN: Dozens dead in Sudan mine collapse

Pizarro took the gold and then executed Atahualpa by garrote for plotting against the Spanish forces and killing his own brother.

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