“…Clarke et al, 2012;Cornforth, 2013;Dube and Jury, 2000Green, 1993;Jager et al, 1998;Manatsa et al, 2008;O'Meagher et al, 1998;Richard et al, 2001;Unganai and Kogan, 1998;Vogel et al, 2010), Sahel (western Africa) (e.g. Giannini et al, 2008;Govaerts and Lattanzio, 2008;Kasei et al, 2010;Lebel et al, 2009;Lodoun et al, 2013;Traore and Fontane, 2007;Zeng, 2003), eastern Africa (Horn of Africa) (e.g. Anderson et al, 2012;Syroka and Nucifora, 2010) and northwestern Africa (e.g.…”