PPARA and pertussis: KEGG pathway analysis showed enrichment mainly in complement and coagulation cascades, Staphylococcus aureus infection, chemokine signaling pathway, cytokine-cytokine receptor interaction, cell adhesion molecules (CAMs), Pertussis, Primary immunodeficiency, glycolysis/ gluconeogenesis, PPAR signaling pathway, systemic lupus erythematosus, and hematopoietic cell lineage (Fig. 4D).