“…Six studies from Southern Africa, Zimbabwe ( 29 ), Madagascar ( 19 ), Malawi ( 17 , 18 , 30 ) and South Africa ( 31 ). Five of the articles came, respectively, from Central Africa, DR Congo ( 15 , 16 ) and Cameroon ( 17 – 19 ); and West Africa, Cote d’Ivoire ( 16 , 19 ), Ghana ( 17 , 18 , 20 , 21 ), Burkina Faso, Mali, Senegal ( 19 ) and Nigeria ( 22 , 23 , 29 ) ( Figure 2 ).…”