The Peruvian government wants to replace coca farms with alternative forms of agriculture, but first it must retake over 50,000 hectares of land from rebels.
Thousands of people have contracted dengue fever since last month's torrential rains and deadly floods created breeding grounds for mosquitoes, which carry the virus.
South America's largest lake was once worshipped by the Incas. But human and industrial waste are threatening Lake Titicaca's ecosystem and way of life, especially for around 1.3 million people living near its banks in Peru and Bolivia.
Peruvian government returns remains of victims killed by rebel group Shining Path
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