Drinking Water -- Nigeria (image) Georgia Institute of Technology Caption This Nigerian woman is gathering water from a local pond, which is used as a source of drinking water. But because of a Guinea worm larvae infestation, this water must be filtered to remove the water fleas that carry the parasitic larvae of the Guinea worm. Credit Photo by E. Staub, Courtesy of CDC and the Carter Center Usage Restrictions For Editorial Use Only; Credit line required Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.