India is a country with the highest burden of TB. In 2015, WHO provided an estimated incidence of 2.2million TB cases in India out of a global incidence of 9.6million. The association between the incidence of TB and socioeconomic status may be mediated through nutritional status. In this regard, a study conducted by Harvard researchers cautioned the possible link between vitamin A supplementation and TB control. This article provides an overview of this important research towards controlling TB.
In high-income countries, TB declined before the availability of BCG vaccine or effective chemotherapy. However, developing nations are still struggling in controlling and managing the spread of TB. Country level data also show an inverse yet linear association between per capita income and TB incidence. Multiple other observational studies also have indicated the association between…
