Legal analysis: do food health certificate is required to check hepatitis B. The hepatitis B is a contagious disease. Hepatitis B is an infectious disease, has a great deal of contagiousness, will be infected through blood, mother and child, intimate contact and daily life contact, to do health certificate also need to check the liver function, liver function is normal, indicating that the patient's number of viruses is small, weak contagiousness, you can do the food health certificate; if the liver function is abnormal, it is not possible to do it, hepatitis B patients in the industry has certain restrictions, can not engage in drinking water, cosmetic surgery, food, catering and other work.

Legal basis: "Food Service Food Safety Supervision and Management Measures" Article 4 The catering service provider shall, in accordance with the laws, regulations, food safety standards and relevant requirements of the catering service activities, the community and the public is responsible for ensuring food safety, accept social supervision, and bear the responsibility for food safety of catering services.