The patient was positive for both CMV IgM and CMV IgG on the 26th day of the COVID-19 onset, with the following antibody titers: CMV IgM, 5.82 sample relative light units/cutoff [S/CO] (normal range: 0.00–0.85 S/CO) and CMV IgG, 58.6 AU/mL (normal range: 0.0–6.0 AU/mL) (Table 1). This evidence concerns the gene CD40LG and COVID-19.