| Authors: |
Zhang DT; Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China., Peng XM; Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China., Zhang L; Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China., Zhao JC; Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China., Xun J; Xicheng District Center for Disease Control and Prevention, Beijing 100120, China., Chu YH; Xicheng District Center for Disease Control and Prevention, Beijing 100120, China., Zou L; Tongzhou District Center for Disease Control and Prevention, Beijing 101100, China., Ji LL; Huairou District Center for Disease Control and Prevention, Beijing 101400, China., Yang P; Beijing Center for Disease Prevention and Control, Beijing 100013, China., Wang QY; Beijing Center for Disease Prevention and Control, Beijing 100013, China., Lu GL; Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China. |