Funding for this research was provided by:
Royal Golden Jubilee (RGJ) Ph.D. Programme (PHD/0169/2556)
Japan Society for the Promotion of Science (18KT0066)
Received: 15 July 2020
Accepted: 19 November 2020
First Online: 11 December 2020
Ethics approval and consent to participate
: All analysis were performed in leftover samples after diagnostic testing which were stored in National Institute of Health, Department of Medical Sciences, Ministry of Public Health, Thailand since 2000. All samples are anonymous, and could not be identified to individuals who they relate. Individual consent could not be obtained. The study was reviewed and approved by the Institutional Review Board of the Faculty of Tropical Medicine, Mahidol University and Department of Biological Sciences, the Graduate School of Science, the University of Tokyo. The need of consent was waived by both Institutional Review Boards.
: Not applicable.
: The author (s) declare that they have no competing interests.