We thank the refugee program volunteers in Largo and Tobanda Refugee Camps and all the Sierra Leonean research and support personnel. Additional thanks goes to the WHO/UNHCR Country offices in Freetown for their administrative and logistical support during planning of the evaluation. We thank the NGOs MERLIN (Largo Camp) and Medecins Sans Frontieres (Tobanda Camp) for collaboration and the Ministry of Health/National Malaria Control Programme in Freetown for their continuous support. We extend gratitude to Pierre Guillet for preliminary program design, John Haskew for assistance on clinical monitoring, and to Rohit Chitale for input on data management and Margaret Kweku for input on statistical analysis. We are grateful to Marcel Dicke who reviewed the manuscript.
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