In line with these data, placental CAT enzymatic activity was significantly increased in the v-COVID-19 and u-COVID-19 subgroups compared to the v-CTRL (p < 0.001, 1.1-fold increase; p < 0.001, 1.1-fold increase) and u-CTRL subgroups (p = 0.002, 1.2-fold increase; p = 0.001, 1.1-fold increase) (Figure 2C). The gene discussed is CAT; the disease is COVID-19.