“…Twenty-four studies were conducted in sub-Saharan Africa, including South Africa [58,61,62,65,71,73,74,81,82,84], Uganda [59,67,69,80], Zimbabwe [60,75,77,78], Malawi [46,88], Democratic Republic of Congo [63], Botswana [76], Tanzania [80], Kenya [79], Nigeria [80], and Togo [85]. Eight were conducted in Asia, including India [64,70], Thailand [68,72,83,89], Cambodia [83], China [86] and Vietnam [87], and one in South America, in Ecuador [66]. Eleven studies focused on adults [46,58,61,64,66,74,75,78,80,83,86]; one of these also included children …”