Occurrence of Extended-spectrum β-lactamase (ESBL) and Carbapenemase-producing Escherichia coli isolated from Childhood Diarrhoea in Yaoundé, Cameroon oleh Saleh Mahamat, Raspail Carrel Founou, Luria Leslie Founou, Thibau Flaurant Tchouangueu, Brice Davy Dimani, Omer Aurelle Nkengkana, Lethicia Danaëlle Mafo, David Chelo, Marie Christine Fonkoua, Yap Boum-II, Hortense Gonsu, Michel Noubom, Paul Olivier Koki Ndombo, Donatien Gatsing