Abstract: This article examines how two chemical substances are woven into the infrastructure of global health as well as into the social lives of health workers in urban Nicaragua. One chemical is temephos, an organophosphate used to control mosquitoes. The other is chlorine-based products, which are used to disinfect surfaces and water. While global health projects tend to treat these substances as stable objects, there are three ways in which they might be understood as leaky things, implicated in fluid social interactions. First, global health chemic...
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