National Geographic : 2007 Jul
Settlers are flooding into the Amazon region of Peru along the new Iquitos-Nauta highway. In what was untouched rain forest, they farm fish (above), cut wood for charcoal (below) and, increasingly, fall ill with malaria. As the trees fall, sunlight warms ponds and puddles, transforming them into mosquito breeding grounds. In little more than a decade, malaria cases in Peru's Amazon have risen from hundreds to more than 120,000 a year. PERU IMAN-MADE MALARIA /.