Norovirus
Norovirus A pathogenic virus which causes infectious gastroenteritis prevailing in winter. It is highly infectious, and a small amount of virus infects and causes diarrhea, vomit, nausea, stomachache and so on. A principal infection route is oral infection. Infection from foods contaminated with virus, secondary infection occurs through contacting or scatter of cough, excrement and vomit of patients are recognized. An effective vaccine and an antiviral drug against Norovirus have not been developed and it is regarded that the effective preventable way is to cook with enough heat, to dispose and treat excrement and vomit correctly, and to wash thoroughly hands.
