Ollanta Humala, a former army officer, was sworn in as Peru's new president Thursday after narrowly defeating Keiko Fujimori, daughter of jailed former president Alberto Fujimori, in a second-round vote in June.

Apr 01

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Maybe you're old enough to remember when people first began dying of a disease that caused a catastrophic breakdown in the body's ability to fight disease. Young people were being killed off by infections the body normally kept in check…