Norovirus d ssebba tamezwarut n waṭṭanen i d-yettwassen s wučči deg Minnesota. Tuget n medden ad ḥlulen deg kra n wussan, maca wid yesεan aḥezzeb n tnefsit-nsen ixuṣṣen zemren ad d-afen isebbaḍ i yugaren. Seqdec afenǧal n tnefsit n wexxam, alamma d 1 12 n yifenǧalen n tnefsit deg yiwen n lgalun n waman, i usizdeg n yiɣallen deffir n useggem neɣ n usehwu. Seqdec tiqenducin n rebbi mi ara tessebleɛ, u sburrgeḍ isekkilen n lkaɣeḍ deg ubelkim.