KRT18 and COVID-19: Gene Set Enrichment Analyzes (GSEAs) also illustrated that DEGs up-regulated in brains of COVID-19 patients (log2 fold change >1) (Fullard et al., 2021; Yang et al., 2021), were significantly enriched in the ranked gene list from brains of BA.5-infected K18-hACE2 mice (Supplementary Figure S6).