TLR7 and COVID-19: It was seen that mRNA expression of TLR3 (fold change = 2.2, P = 0.004), TLR7 (fold change = 2.5, P = 0.038), TLR8 (fold change = 3.1, P = 0.018), and TLR9 (fold change = 3.0, P = 0.026) was significantly upregulated in the COVID-19- Group A in comparison to Control-Group III (Table 3).