Funding for this research was provided by:
U.S. Department of Defense (989A)
Received: 23 February 2018
Accepted: 23 August 2018
First Online: 14 September 2018
Ethics approval and consent to participate
: The study was approved by the Institutional Review Boards of the Royal Thai Army in Bangkok, Thailand, the Walter Reed Army Institute of Research and the London School of Hygiene & Tropical Medicine. All participants provided written informed consent. The investigators have adhered to the policies for protection of human subjects as prescribed in Army Regulation 70–25.
: Not applicable.
: CCT is associate editor for <i>BMC Infectious Diseases</i>, research area Viral Diseases. All other authors declare that they have no competing interests.
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