Funding for this research was provided by:
Fogarty International Center (D43TW009639, D43TW010075)
Received: 7 December 2019
Accepted: 21 February 2020
First Online: 28 February 2020
Ethics approval and consent to participate
: The research carried out in this study was reviewed and approved by the Papua New Guinea Institute of Medical Research Institutional Review Board (IRB No. 1517), Papua New Guinea Medical Research Advisory Committee (MRAC No. 16.08), and Michigan State University Institutional Review Board (IRB No. 17-1603).
: Not applicable.
: The authors declare that they have no competing interests.