LAIR1 transcripts were also differentially expressed by cM, ncM, cDC, and NK cells in COVID-19+ cases when compared to healthy controls (log2FC = 0.65 to 1.06, FDR = 5.0 × 10−6 to 3.0 × 10−3; other cell types: log2FC = −1.2 × 10−2 to 1.6 × 10−2, FDR = 0.64 to 0.93), and the transcript and protein abundances were correlated (mean across all cell types: Pearson R = 0.89, P = 2.3 × 10−4). Here, LAIR1 is linked to COVID-19.