DJAMAN, Allico Joseph, Department of Biochemistry, Laboratory of biology and health, UFR of Biosciences, Félix Houphouet-Boigny University, Abidjan, 22 B.P. 582 Abidjan 22 Côte d’Ivoire. Department of Clinical and Fundamental Biochemistry, Pasteur Institute, Abidjan, Côte d’Ivoire, Côte d'Ivoire