Guo, Juntao
Yang, Meixia
Wu, Zheyuan
Shen, Xin
Wang, Yuanhui
Zhao, Genming
Funding for this research was provided by:
Key Project of Chinese National Programs (2013ZX10004903)
Article History
Received: 7 November 2017
Accepted: 28 March 2019
First Online: 11 April 2019
Ethics approval and consent to participate
: Ethical approval for this study was obtained from the Institutional Review Board of the Shanghai Municipal Center for Disease Control and Prevention. Lists of potential participants (including index cases and contacts) were emailed to each study coordinator in the four districts. Trained community doctors then called each participant in their community to obtain their verbal consent. For children under the age of 16, consent was obtained from their parents or legal guardian. For those who could not be reached by telephone, a home visit was conducted by community doctors to obtain their verbal consent. The study coordinator from each district then compiled and returned the list of individuals who gave their consent, along with their own statement and signatures to prove its authenticity. Names and identification numbers were removed in the data analysis step to preserve the confidentiality and anonymity of the individuals from whom data were collected.
: Not applicable.
: The authors declare they have no competing interests.
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