The proinflammatory monocytes (cluster 4) expressed a special gene combination, namely, chemokine ligands, interleukins, as well as lncRNAs (e.g., CCL3L1, CCL4, CCL4L2, CXCL2) related to virus infection,26 inflammation,27 and pyroptosis.28 This evidence concerns the gene CCL3L3 and viral infectious disease.