Hello, hepatitis B virus carriers are infected with hepatitis B in the same way, mainly through blood transmission, mother-to-child transmission, father-to-infant transmission, transmission of unsterilized medical equipment, sexual contact and other ways of transmission, the daily working life of hepatitis B virus carriers infected the chance of very small, basically the same as the healthy people. Therefore, hepatitis B virus is not transmitted through diet. In addition, there is no national law that hepatitis B virus carriers can not engage in the catering industry.