IL11RA and COVID-19: Our in silico analysis, as described in the Methods section, Results and Supplementary Materials, revealed an IL11RA protein/IL11RA mRNA/miR-4257/ lncRNA RP11-773H22.4 molecular network that is highly determinative of COVID-19 severity and acts along with procalcitonin and ferritin (Figure 1 and Figure 2, Table 1).