We thank members of Bureau of Epidemiology, Department of Disease Control, Ministry of Public Health, Thailand and Bangkok Metropolitan Administration involved in the outbreak investigation; P. Wilairat and K. Kümpornsin for comments and suggestions; and the ARTIC network for technical assistance. This report was a part of the genomic surveillance program approved by the Ethics Committee of Faculty of Tropical Medicine, Mahidol University (TMEC 20-039). The American Society of Tropical Medicine and Hygiene has waived the Open Access fee for this article due to the ongoing COVID-19 pandemic.
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