In the late pregnancy, the COVID-19 group exhibited significantly lower levels of platelet count and neutrophil-to-lymphocyte ratio (NLR) compared to the control group (P 0.05), Conversely, the COVID-19 group had significantly higher levels of creatine kinase, myoglobin, and aspartate aminotransferase (AST) than the control group (P 0.05) (Table 3). This evidence concerns the gene MB and COVID-19.