Lberd, Ṭṭana, Lfedra, Skar, Lfula 4.1.3. Areṭṭal ur nettwamuzeɣ ara maḍi - Deg wammud-nneɣ nufa-d 07 n yismawen ireṭṭalen ur nettwamuzɣara maḍi, azal n 4.63% ,ma seg yireṭṭalen nesɛa azal n 38.88% - Ismawen ireṭṭalen d-yekkan si tefrensist.