“…Between March 2000 and March 2020, we selected 18 articles that met the inclusion criteria post reviewing the titles and abstracts of 103 indexed articles. Only 18 of the 54 countries in Africa were represented: DRC (Mjumbe et al, 2020 ;Lukamba et al, 2018 ;Hendricks et al, 2011), Rwanda (Stulac et al, 2015 ;Neal et al, 2018 ;Kanyamuhunga et al, 2015), Malawi (Hesseling, 2009), North Sudan (Abuidris et al, 2008), Benin (Akhiwu et al, 2009), Tunisia (Missaoui et al, 2011), Nigeria (Meremikwu et al, 2005), Uganda (Fung et al, 2019 ;Wakabi, 2008), Ghana (Israels et al, 2018 ;Renner et al, 2018) , Malawi (Israels et al, 2018), Cameroon (Israels et al, 2018), Ivory Cost (Lukamba et al, 2018 ;Yao et al, 2019 ;Hendricks et al, 2011), Mali (Traoré et al, 2018), Cameroon (Doumbe et al, 2002) and Kenya (Wakabi, 2008). It is possible that unpublished studies were conducted in this region during the study period, but we believe the results might be approximately the same.…”