In addition, 2-acetyl-1-alkyl-sn-glycero-3-phosphocholine is a platelet-activating factor (PAF) and an inflammatory mediator secreted by many immune cell types, endothelial cells, and platelets, which contributes to leukocyte chemotaxis and local inflammation in response to bacterial and viral infection (Kelesidis et al., 2015). This evidence concerns the gene PCLAF and viral infectious disease.