Norovirus ni impamvu yambere y'indwara ziterwa n'ibiribwa muri Minnesota. Abantu benshi bazakira mu minsi mike, ariko abantu bafite ubudahangarwa bw'umubiri bunanutse bashobora kugira ibimenyetso birebire. Koresha umuti wo kuvura urugo, kugeza ku bikombe 1 12 bya kuvura muri litiro imwe y'amazi, kugira ngo ukureho impande nyuma yo kuruka cyangwa impanuka z'isukari. Kwambara uturindantoki twa rubber mugihe ukarabya, no gutwara impapuro z'ipapayi mu isakoshi ya plastiki.