Fig. 2From: mRNA expression of toll-like receptors 3, 7, 8, and 9 in the nasopharyngeal epithelial cells of coronavirus disease 2019 patientsBar graphs show the mRNA expression levels of TLR3 (a), TLR7 (b), TLR8 (c), and TLR9 (d) in the epithelial cells obtained from COVID-19 cases compared to the control group (* show P < 0.05 and ** shows a P < 0.01)Back to article page