The sensitivity of Healgen COVID-19 IgG/IgM Rapid Test Cassette was found to range from 67.7 to 100% with a specificity of 99% [70,71,72] whereas Biohit SARS-CoV-2 IgM/IgG Antibody Test Kit had a sensitivity and specificity of 94.6% (95% CI: 87.8–100%) and 92.6% (95% CI: 84.7–100%), respectively [73]. The gene discussed is CD40LG; the disease is COVID-19.