Table 1. Characteristics of study sites.

Country	Benin	Gabon	Mozambique	Tanzania	Kenya
Sites	• Allada • Sékou • Attogon	• Lambaréné • Fougamou	• Manhiça • Maragra	• Makole • Chamwino	• Siaya
Malaria transmission	Hyperendemic	Hyperendemic	Mesoendemic	Mesoendemic	Holoendemic
High transmission season	April–July	October–May	September–March	June–August	May–July
Estimated proportion of P. falciparum infections among all malaria infections in the study sites	>90%	>90%	>90%	>90%	>90%

Adapted from González and colleagues [27,28]. Data reported in this table are estimates from 2009 prior to the clinical trials performance. The 2 clinical trials ran in parallel during the same time period.