COVID-19 has been associated with an exuberant activation of the host immune system and the excessive production of proinflammatory cytokines, such as IL-1, IL-2, IL-6, IL-10, IL-12, IFN-γ, TNF-α, among others, which may cause tissue injury, particularly on the lungs [5–7]. The gene discussed is IL2; the disease is COVID-19.