CD40LG and COVID-19: Here, we showed the dynamic antibody profiles of IgA, IgM, and IgG in COVID-19 convalescent patients and found that NAbs were significantly correlated with IgA (r = 0.415, p < 0.001), IgM (r = 0.447, p < 0.001), and IgG (r = 0.667, p < 0.001).