'The tubercular diabetic': the impact of diabetes mellitus on tuberculosis and its threat to global tuberculosis control.

The incidence and prevalence of diabetes mellitus (DM) is rapidly increasing across the globe. Tuberculosis (TB), meanwhile, remains a significant problem in low and middle income countries fuelled by high rates of HIV/AIDS. This article explores the long recognised but underappreciated connection between the two, revealing that DM makes a substantial contribution to the burden of incident TB around the world and may also worsen TB severity and treatment outcome. The dual management of the diseases may be challenging but must be addressed, both in low and high income settings, because the rising worldwide diabetes burden poses a threat to global TB control.