Yong et al. compared the diagnostic potential of RT-PCR and IgG/IgM antibody test for SARS-COV-2 and found that the RT-PCR was great at detecting early infection (92% of suspected COVID-19 cases (n=38) while antibody detection ranged from 23% (IgM) to 53% (IgG)) [42]. The gene discussed is CD40LG; the disease is infection.