China has a population of over 1.4 billion and is the world's most populous country [1 ]. It has 3 levels of sub-national administrative division: 34 provinces or regions, 333 prefectures and more than 3000 counties.
The NCTB, which belongs to China center for disease control, is in charge of the NTP. TB management units are established at provincial, prefecture and county levels (basic management units (BMU) at county level). TB diagnostic facilities are centralized at the BMU level and rarely available at township level (below county). Diagnosed patients are registered in web-based TBIMS and initiated on directly observed therapy (DOT) at BMU with assistance from township clinics and village health workers. There are some regional referral hospitals which also take patient management responsibility similar to a BMU.
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