Acknowledgement
We are grateful for the support from Wondfo, Guanzhou Biotech, China and PT Biofarma Indonesia (Persero) for providing the FastBioRBD fluorescent immunoassay reader and the rapid test reagents for our study. Thank you to Research and Innovation Indonesian Institute (BRIN) for providing initial operational support for conducting the study. We thank the director of Hasan Sadikin General Hospital for allowing this study to be conducted and the staff of the hospital who participated in this study. We thank the Dean of the Medical Faculty of Padjadjaran University who provide laboratory facilities for sample management and testing in this study.
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