1Department of Critical Care Medicine, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou 310014, Zhejiang, China
2Department of Communicable Diseases of Control and Prevention, Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou 310000, Zhejiang, China JFIF d d Ducky d qhttp://ns.adobe.com/xap/1.0/