BMP2K, OCR5, CSF1R, FAM3C, FLT3LG, IL10RA, IL12RB, IL12RB2, IL16, IL18BP, IL2RA, IL2RB, IL6R, IL7R, TGFBR2, TNSF13, VEGF were all upregulated in Asymptomatic as compared with mild and severe COVID-19 case. Here, TGFBR2 is linked to COVID-19.