| Authors: |
Wang S; Infectious Disease Prevention and Control Center, Shandong Center for Disease Control and Prevention, Jinan 250014, China., Liu L; Infectious Disease Prevention and Control Center, Shandong Center for Disease Control and Prevention, Jinan 250014, China., Ma Y; Disease Prevention and Control Institute, China Railway Jinan Group Co., Ltd, Jinan 250000, China., Lyu H; Infectious Disease Prevention and Control Center, Shandong Center for Disease Control and Prevention, Jinan 250014, China., Yu XL; Infectious Disease Prevention and Control Center, Shandong Center for Disease Control and Prevention, Jinan 250014, China., Liu ZQ; Infectious Disease Prevention and Control Center, Shandong Center for Disease Control and Prevention, Jinan 250014, China., Chen YZ; Infectious Disease Prevention and Control Center, Shandong Center for Disease Control and Prevention, Jinan 250014, China., Fang M; Infectious Disease Prevention and Control Center, Shandong Center for Disease Control and Prevention, Jinan 250014, China., Liu Y; Management Office, Shandong Kaijing Biotechnology Co., Ltd, Jinan 250100, China., Sun GX; Infectious Disease Prevention and Control Center, Shandong Center for Disease Control and Prevention, Jinan 250014, China., Chen YR; Infectious Disease Prevention and Control Center, Shandong Center for Disease Control and Prevention, Jinan 250014, China., Fu LC; Central Office, Tai'an Center for Disease Control and Prevention, Tai'an 271000, China., Kou ZQ; Infectious Disease Prevention and Control Center, Shandong Center for Disease Control and Prevention, Jinan 250014, China. |