On the day of admission, the highest levels of CCAT1, IFN‐γ, IL‐1β, iNOS, and TNF‐α were detected in N‐TB patients, followed by R‐TB patients and controls, while the lowest levels of plasma IL‐10 were detected in N‐TB patients, followed by R‐TB patients and controls. The gene discussed is IFNG; the disease is tuberculosis.