IFNG and nervous system disorder: A study from India compared the cytokine profile for patients with and without neurological complications following chikungunya infection.128 Of those with neurological disease, 4 had encephalitis and 1 had “neuropathy.” Concentrations of 4 cytokines (TNF‐α, IFN‐α, IL‐6, and monokine induced by IFN‐γ) were found to be significantly higher in patients with neurological disease secondary to chikungunya, as opposed to uncomplicated chikungunya infection.