Fig. 2

Distribution of intervals between repeat malaria episodes from 6 sites in West Africa. Top row Niakhar, Senegal, 2003; Farafenni, The Gambia, 2003; Middle row Kati, Mali 2008–2009; Boussé, Burkina Faso, 2008–2009. Bottom row Navrongo, Ghana 2002–2003; Kintampo, Ghana 2010–2011. The mean interval between malaria episodes, in days, was 50.9 (95 % CI 49.0, 52.8) days in Niakhar, 42.3 (95 % CI 37.0, 47.5) days in Farafenni, 43.4 (95 % CI 40.1, 46.7) days in Kati, 52.4 (95 % CI 48.0, 56.7) days in Boussé, 66.1 (95 % CI 60.6, 71.6) days in Navrongo, and 74.6 (95 % CI 71.1, 78.0) days in Kintampo