HAMP and infection: To address the effect of M. tb infection on the expression of hepcidin and other genes involved in iron homeostasis, we infected 6–10 week old female C57BL/6 mice with aerosolised M. tb and quantified hepatic gene expression at various time points post-infection between day 0 (before infection) to 56 days post-infection (D56) (outlined in Fig 1A).