Algeria   8 studies
Angola   1 study
Benin   6 studies
Botswana   19 studies
Burkina Faso   32 studies
Cameroon   17 studies
Central African Republic   4 studies
Congo   10 studies
Congo, The Democratic Republic of the   3 studies
Côte D'Ivoire   7 studies
Egypt   111 studies
Ethiopia   11 studies
Gabon   18 studies
Gambia   25 studies
Ghana   38 studies
Guinea   3 studies
Guinea-Bissau   26 studies
Kenya   68 studies
Liberia   1 study
Madagascar   8 studies
Malawi   40 studies
Mali   42 studies
Mauritania   1 study
Mauritius   2 studies
Morocco   29 studies
Mozambique   21 studies
Niger   2 studies
Nigeria   18 studies
Rwanda   8 studies
Réunion   2 studies
Senegal   16 studies
Seychelles   1 study
Sierra Leone   1 study
South Africa   864 studies
Sudan   5 studies
Swaziland   1 study
Tanzania   70 studies
Togo   1 study
Tunisia   58 studies
Uganda   83 studies
Zambia   41 studies
Zimbabwe   17 studies