text: Vιtamin A wã na n sõnga kambã tι b põs ne bãas wʋsgo, tι bogba me wa paas pãnga » laafι wã minisr a porfesɛɛr Charlemagne Ouedraogo sẽn togse. Tʋʋm kãngã pʋgẽ kamb sõor sẽn yιιd milyõ a tãab la tus kobs-naase n na n paam tι-bιιsι sẽn kẽed ne vιtamιn A wã, ne yõbdã wɛɛngẽ.