Funding for this research was provided by:
Health and Medical Research Fund (08070532)
University Grants Committee (T11-705/14-N)
National Institutes of Health (U41 HG006623)
Received: 25 August 2017
Accepted: 25 January 2018
First Online: 23 February 2018
Ethics approval and consent to participate
: Consent from blood donors was obtained by Hong Kong Red Cross to use blood components for research experiments. The use of human blood samples in this project has been reviewed and obtained human ethics approval (ref no. UW 08–073) issued by Institutional Review Board of the University of Hong Kong.Viruses were obtained from specimens collected from patients as part of their routine clinical care. Thus, there is no necessity to obtain specific consent from the patients. Virus isolates obtained in this way are routinely used for research and for public health purposes. There is no requirement to obtain specific consent from each patient for the use of virus isolates coming from their clinical specimens.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.