Abstract: A method of analyzing the therapeutic efficacy of a therapeutic agent for treating an immune-related disorder is disclosed. The method comprises contacting blood cells of the subject with the agent, measuring the expression of at least 20 genes in the blood cells of the subject; obtaining an immune age value based on the expression of the at least 20 genes, and comparing the immune age value with an immune age value of the subject calculated on the basis of expression of the at least 20 genes in blood cells of the subject, in the absence of the agent.

Abstract: Provided are methods of determining prognosis of a subject diagnosed with sepsis, by determining the baseline levels of T-cell senescence in the subject. Also provided are methods of treating a subject diagnosed with sepsis, by monitoring the subject diagnosed with sepsis and treating the subject which exhibits high baseline levels of T-cell senescence.

Abstract: Methods of determining an immunological age of a subject are provided. Methods of diagnosing increased risk of illness and mortality are also provided, as are kits for performing these methods.

Abstract: Provided are methods of determining prognosis of a subject diagnosed with sepsis, by determining the baseline levels of T-cell senescence in the subject. Also provided are methods of treating a subject diagnosed with sepsis, by monitoring the subject diagnosed with sepsis and treating the subject which exhibits high baseline levels of T-cell senescence.