The length of time that the hepatitis A virus can survive on dishes is mainly related to the temperature of the environment in which it is found and cannot be generalized. Generally speaking, hepatitis A virus is highly resistant to various external factors and can survive for a long time in the external environment, about 3 months in aquatic shellfish. In dishes, on the other hand, the survival time varies depending on the ambient temperature. Usually, in a normal room temperature environment, the hepatitis A virus can survive for more than 10 days or even longer. However, if it is irradiated by ultraviolet light, cleaned with various chlorine disinfectants, or heated to 60℃, the hepatitis A virus can usually be effectively killed in about 30 minutes. In addition, it should be noted that hepatitis A is mainly transmitted through the fecal-oral route, and fecal contamination of water and food can cause transmission. Therefore, it is recommended that when eating all kinds of shellfish, they should be cooked before consumption.