400
Participants
Start Date
January 1, 2021
Primary Completion Date
March 31, 2023
Study Completion Date
March 31, 2023
viral infection
a child is infected by virus only
viral and bacterial infection
a child is infected by virus and progress to bacterial infection
Chen, Chongqing
Children's Hospital of Chongqing Medical University
OTHER
Daping Hospital and the Research Institute of Surgery of the Third Military Medical University
OTHER