Eradication of "Dracunculus medinensis" from humans is in progress. No vaccine or medicine is available to help eradicate it. For this reason eradication is done entirely by preventive methods. These preventive methods include: Individuals who suspect they are infected voluntarily report themselves to eradication workers or eradication volunteers; filter vectors of "D. medinensis" out of drinking water; obtain drinking water from water sources which have been improved in ways which keep out "D. medinensis"; prevent individuals infected with "D. medinensis" from wading or swimming in drinking-water sources; eradication workers actively surveil for new cases; eradication workers do case containment when they find an infected individual; eradication vector control; provide water sources which have been improved in ways which keep out "D. medinensis". Methods to improve drinking water sources include: protect hand-dug wells from "D. medinensis"; sink deep-bore wells which are too deep for "D. medinensis"; improve existing surface drinking-water sources to exclude "D. medinensis"; make surface water safe by using sand filters to remove "D. medinensis". Improve existing surface drinking-water sources means: construct barriers to prevent humans with "D. medinensis" from entering the water.