On the other hand, some differentially increased genera in COVID-19 patients correlated with C-reactive protein levels, including Schaalia (r = −0.87; p < 0.001), Ihubacter (r = −0.85; p < 0.001), Lactonifactor (r = 0.78; p = 0.004), Neglecta (r = 0.67; p = 0.014), and Granulicatella (r = −0.54; p = 0.046). This evidence concerns the gene CRP and COVID-19.