ANSWERS: 1
-
<div class="section1">
Guinea worn infection is prevented by disrupting transmission. Wells and other protected water sources are usually safe from being contaminated with worm embryos. In open water sources, poisons may be used to kill water fleas. Otherwise, water must be boiled or filtered.
Source: The Gale Group. Gale Encyclopedia of Medicine, 3rd ed.";

by 3 hours ago
