The main diseases involved in health examination are dysentery, typhoid fever, active tuberculosis, dermatosis (infectious) and other infectious diseases. If you find these diseases, don't engage in direct contact with imported food, hairdressing and beauty salons, public bathrooms and other work that directly serves customers. You can only work after you are cured.
On June 1 day, 2009, China formally implemented the new Food Safety Law, and on July 20th, China issued the implementing regulations to allow hepatitis B virus carriers to engage in the food industry. Therefore, hepatitis B virus carriers can also legally apply for health certificates.