CD40LG and infection: The assays evaluated were S protein RBD-specific IgG antibody quantification reagents (S-IgG, anti-S Abbott SARS-CoV-2 IgG II Quant), whole S protein-specific IgM antibody semi-quantitative reagents (S-IgM, anti-S Abbott Alinity SARS-CoV-2 IgM), and semi-quantitative reagents for N protein-specific IgG antibody (N-IgG, anti-N Abbott Alinity SARS-CoV-2 IgG) and analyze how neutralizing antibody function evolves during infection and promote recovery.