SCD consists of the haemoglobin SS (HbSS) and haemoglobin variant syndromes such as haemoglobin SC (HbSC), haemoglobin SE (HbSE) [3]. Sickle cell anaemia (SCA), also known as HbSS, is the most common and most severe form of SCD [4]. The prevalence of sickle cell disease ranges between...