College of Science and Technology;
School of Sciences;
Department of Mathematics;
University of Rwanda;
Butare;
Rwanda;
Department of Mathematics;
Faculty of Exact and Applied Sciences;
N’Djamena University;
N’Djamena;
Chad;
Department of Mathematics;
Faculty of Sciences and Technology;
Dakar University;
Dakar;
Senegal;
Fuzzy; Logic; Optimal; Control; Membership; Function; Membership; Degree; Hepatitis; C; Virus; Uninfected; Hepatocytes; Infected; Hepatocytes; Numerical; Simulation;