handled by the centers for disease control and prevention. Generally, the health certificate is handled in the Center for Disease Control and Prevention or the designated hospital, depending on the local notice. Before handling the health certificate, a physical examination is conducted. Gouhu Township is located in Chaoshan Plain, Guangdong Province, belonging to Chendian Town, Chaonan District, Shantou. It is 14 kilometers away from the center of Chaonan District and 351 kilometers away from Shenzhen. National Highway 324 passes through Gouhu Township, with convenient transportation. It is a township with good commercial and industrial development.