Fig. 1
From: Metabolomic diferences between COVID-19 and H1N1 influenza induced ARDS
Principal component analysis (PCA) performed on the NMR data of serum samples from ARDS patients diagnosed with Coronavirus disease 2019 (COVID-19) and H1N1-2009 influenza pneumonia (IAP). A Score plot discriminated between groups along PC2. B PCA 2 loading plot identified the resonances that induce the clustering between IAP and COVID-19 groups. The figure highlights the significant metabolites