Only ten companies have the right to vaccinate, including the General Hospital of Nanjing Animal Husbandry and Veterinary Station and its affiliated branches in West, North, Xiaguan and Jianye, as well as the Veterinary Hospital of Nanjing Agricultural University, Qixia Animal Husbandry and Veterinary Station, Nanjing Hongyun Pet Sales Center, Nanjing Aiqi Pet Service Co., Ltd. and Nanjing Dog Brother Pet Service Center.