In addition, they also found that several chemokines in plasma, including IL-8, IFN-γ-induced protein-10, monocyte chemoattractant protein-1 and monokine induced by IFN-γ, were significantly higher in patients with pulmonary edema than in those with uncomplicated brainstem encephalitis [4]. Here, CXCL8 is linked to pulmonary edema.