Research progress on elimination technologies of human norovirus contamination in shellfish

Abstract:

Human norovirus is one of foodborne pathogens that causes acute gastroenteritis in human beings around the world. The digestive glands of oysters, mussel and other shellfish have the norovirus receptor analogue, which can accumulate high concentration of virus from the contaminated water. Eating raw or improperly processed shellfish which are contaminated become a major reason for the norovirus infection. The elimination technologies of contaminated shellfish have become a research hotspot in the field of norovirus prevention and control, including the methods of disinfectant, ozone processing, ultraviolet radiation, and probiotics with antiviral effect that recently reported. Infectivity detection of norovirus plays an important role in determining the level of virus contamination in shellfish and evaluating the efficacy of elimination technology. Only complete, infectious virus would threaten human health. In this study, the current researches on detection of norovirus infectivity, product disinfection technology, and elimination technology of shellfish culturing are reviewed, hoping to provide a reference for improving the control technology of foodborne virus.

Key words:norovirus;shellfish;infectivity detection;elimination technology