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The diseases t ransmit ted by arthropods and other invertebrate hosts represent an enormous burden to human and animal health, if we consider that 3.3 billion people are at risk of acquiring malaria, and that , in 2010, malaria deaths were est imated at 655000 (WHO, 2012), that schistosomiasis and geohelminthiasis affect two billion humans, causing morbidity to 300 million (WHO, 2006), and that 350 million peop...
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