Guinea worm disease is reaching the end of its days. The parasitic infection, which has sickened millions, mostly in Asia and Africa, is on the verge of being done in not by sophisticated medicine but by aggressive public health efforts in some of the poorest and most remote parts of the world.
To eliminate the parasite, which is found in drinking water, hundreds of thousands of volunteers have handed out straws with cloth filters, treating water sources with larvicide, teaching villagers how to avoid infection and scouring the countryside for new cases......
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