Funding for this research was provided by:
Faculty of Tropical Medicine, Mahidol University
Received: 21 May 2021
Accepted: 7 September 2021
First Online: 15 November 2021
: This study was approved by the Ethics Committee of the Faculty of Tropical Medicine, Mahidol University (MUTM 2020–029-01). Informed consent was obtained from all participants prior to study enrollment.
: Not applicable.
: Watcharapong Piyaphanee is an Associate Editor for the journal Tropical Diseases, Travel Medicine and Vaccines. The authors declare that they have no other competing interests.