Dissecting in vivo cellular responses to interferons in pathogen-infected hosts

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Tuberculosis (TB) is caused by virulent bacterium Mycobacterium tuberculosis and is a leading cause of death worldwide. Mechanisms underlying host resistance to the pathogen are poorly understood. Using a novel reporter mouse, the function of interferons in Mtb infection will be defined in vivo by tracking the cytokine-responsive cells. This will increase our understanding of the effects of these important cytokines in vivo, and could provide new candidate biomarkers for TB diagnosis.