Deficiency of LIGHT signaling pathway exacerbates <em>C. psittaciem> respiratory tract infection in mice.
LIGHT signaling pathway may promote CD4+ CD25+ Foxp3+ Treg cells differentiation in <em>C. psittaciem> intranasal infected mice.
LIGHT signaling pathway may inhibit T cell related cytokines production in <em>C. psittaciem> intranasal infected mice.