Upungufu mkubwa wa maji Sudan Kusini
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Women who crossed over from Sudan's Blue Nile state with little food or water fill jerry cans at a watering hole called Km 18 on June 20, 2012. Water from watering holes can carry disease. (Hannah McNeish/VOA)
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A young herder in Kuse Dam in Terekeka county, north of Juba, uses a pipe filter provided by The Carter Center to strain out infective Guinea worm larvae from water while drinking.
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Women gather to collect water at the Yusuf Batil refugee camp in Upper Nile, South Sudan, July 4, 2012.
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Displaced women gather to collect water from a water hole near Jamam refugee camp in South Sudan's Upper Nile State, March 10, 2012.