Funding for this research was provided by:
Shanghai Association for Science and Technology (2017ZX10103009-003)
Received: 17 April 2019
Accepted: 20 July 2019
First Online: 26 July 2019
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Review Board of Shanghai Municipal Center for Disease Control and Prevention, China. Clinical stool samples were obtained from the routine Comprehensive Gastroenteritis Surveillance Programme of Shanghai CDC. Sample collection was approved by either the patients or their parents with prior informed consent.
: Not applicable.
: The authors declare that they have no competing interests.