Population structure of Mycobacterium tuberculosis in two geographically distant areas of Argentina

Background Argentina is a large South American country with diverse areas regarding physical geography, ethnic composition and TB epidemiology. Jujuy, an Andean province predominantly inhabited by native Americans, presents one of the highest TB rates in the country [1]. The cosmopolitan area of Buenos Aires in the pampas presents medium TB rates and receives migrants from highly TB endemic areas of Argentina and neighbor countries.