According to the Food Safety Law of People's Republic of China (PRC), food producers and operators should establish and implement the health management system for employees. Persons suffering from specific infectious diseases or diseases that hinder food safety shall not engage in direct contact with imported food. Supermarkets, as places that provide direct import goods sales services, require health certificates when recruiting employees to ensure that employees who are healthy and suitable for food-related work are employed. Conduct a health examination once a year and obtain the certificate of conformity issued by the corresponding institution before taking part in the relevant work.