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Article History

Received: 18 May 2017

Accepted: 8 November 2018

First Online: 5 December 2018

Ethics approval and consent to participate

: According to the National Health Commission of China, the national surveillance protocol for HFMD is part of an ongoing public health response and, therefore, exempt from review by Qinghai’s CDC IRB. The United States Centers for Disease Control and Prevention approved the project as a routine surveillance activity. Personal identifying information such as patient name, parent name, home address, and telephone number were deleted prior to analysis.

: Not applicable.

: We declare that we have no conflicts of interest.

: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.