Of note, among the positive correlates to IFNA2 levels in the fatty acid compartment, we observed only saturated (octanoic, dodecanoic, hexadecanoic, octadecanoic) or monounsaturated fatty acids (tetradecenoic, hexadecenoic, octadecenoic) (compare IFNA2 to IFNB1 in SI Appendix, Fig. S10F), suggestive of limited fatty acid desaturase activation despite the stress induced by the viral infection (35). The gene discussed is IFNB1; the disease is viral infectious disease.