Funding for this research was provided by:
Research Chair Grant from the National Science and Technology Development Agency (P-15-50004)
Center of Excellence in Clinical Virology of Chulalongkorn University/King Chulalongkorn Memorial Hospital (GCE 59 009-30-005)
the Second Century Fund (C2F), Chulalongkorn University
Received: 6 December 2020
Accepted: 5 March 2021
First Online: 9 March 2021
: The study was conducted with the approval of the Research Ethics Committee of the Faculty of Medicine, Chulalongkorn University (IRB number 572/63), and that committee waived the requirement for consent because the samples used were obtained during the course of routine preventive measures and were de-identified and anonymous.Consent to participate: not applicable.
: Not applicable.
: The authors declare no competing interests. There is no involvement from the companies Seegene, SD Biosensor, EUROIMMUN, and Abbott.