Senior Kimia Raafat had planned to pass out iron skillets, mosquito nets, and chewable vitamins over the summer to orphanages in Senegal where the majority of children under the age of 5 develop iron-deficiency anemia. But arriving in western Africa, the unexpected proved more pressing. Encountering 70 boys on the dirt floor of a cardboard hut, she decided to reprioritize. With its leaky paper roof and walls letting in rain and mosquitoes, the shabby dwelling was conducive to the spread of malaria and needed a safer, more durable replacement.