Major Obstacles for Global TB Control
Rapid expansion of the population: Automatical increase of the absolute number of TB cases even if the rates remain as before.
Move of the population: Increase of the proportion of foreign-born among new TB cases in industrialized countries.
Slum formation in big cities both in developed and developing countries.
Impact of HIV epidemic: Increase of TB in HIV epidemic areas.
Impact of MDRTB: MDRTB was produced through poor TB control programme.
Impact of Movement of Population
From high prevalence countries to low prevalence countries as legal or illegal migrants and refugees: Increase of the proportion of foreign-born among newly registered TB cases.
From low prevalence countries to high prevalence countries for business and tourism: Increase of primary infection among persons of industrialized countries.
Slum formation in big cities both in developing and developed countries by refugees, returnees and migrants from disastrous areas: Very difficult to carry out TB control programme in spite of high incidence of TB.
Impact of Movement of Population
From high prevalence countries to low prevalence countries as legal or illegal migrants and refugees: Increase of the proportion of foreign-born among newly registered TB cases.
From low prevalence countries to high prevalence countries for business and tourism: Increase of primary infection among persons of industrialized countries.
Slum formation in big cities both in developing and developed countries by refugees, returnees and migrants from disastrous areas: Very difficult to carry out TB control programme in spite of high incidence of TB.
