A flood victim sleeps under a mosquito net while taking refuge in a makeshift tent in Pabbi, located in Pakistan's northwest Khyber-Pakhtunkhwa Province August 13, 2010. Disease outbreaks pose new risks to victims of Pakistan's worst floods in decades, aid agencies said on Friday, potentially hindering already complicated relief efforts. The floods, triggered by torrential monsoon downpours, have engulfed Pakistan's Indus river basin, killing more than 1,600 people, forcing two million from their homes and disrupting the lives of about 14 million people, or 8 percent of the population. REUTERS/Fayaz Aziz (PAKISTAN - Tags: DISASTER ENVIRONMENT HEALTH)