A decrease in monocyte FTH1 expression is also seen in the subset of subjects in the NYP COVID-19 cohort who had blood drawn for bulk RNA Sequencing (RNA-Seq) of peripheral blood mononuclear cells (PBMCs), where we found a trend for lower FTH1 transcripts per million (TPM) in subjects with COVID-19 ARDS (n=48) compared to those with COVID-19 pneumonia (n=6) (Supplementary Figure 2B). Here, FTH1 is linked to COVID-19.