The statistical assay used in this analysis—Chi-square test—showed that there were no significant differences in the expression of ACE2, spike proteins, and CD68+ macrophages within the placental tissue of patients infected with SARS-CoV-2 virus during pregnancy compared with the trimester in which the infection occurred (tested for significance level p < 0.05 (Table 3). The gene discussed is CD68; the disease is infection.