 The total confirmed Covid-19 cases in Nigeria hit 17,148, as 490 new cases were announced late on Tuesday. Meanwhile, the World Health Organisation says it welcomes preliminary results from clinical trials in the United Kingdom which show that a corticosteroid; Dexamethasone can be lifesaving for critically ill Covid-19 patients. Director-General of the Nigeria Centre for Disease Control, Chikwe Ihekweazu joins CNBC Africa more... 