United Nations, March 25 -- Tuberculosis is not only the world's top infectious killer, it is also the leading cause of deaths among people with HIV and a major cause of antimicrobial resistance-related deaths, the United Nations health agency said on World Tuberculosis Day.

As TB is contagious and airborne, migrants are among the high-risk vulnerable groups, according to the UN International Organiszation for Migration (IOM).

IOM pointed out that many work in dangerous, difficult jobs, and live in sub-standard housing. Others may be detained in over-crowded detention facilities or live in refugee or internally displaced persons camps.

Moreover, migrants face language, administrative and cultural barriers in accessing health services an...