Patient's treatment path. Treatment paths of TB patients in Treatment Categories (CAT) 1, 2 and 3 are schematically presented. Only paths of patients involved in the PPP are shown. General treatment duration for all patients in CAT 1–3 is 8 months; if follow-up sputum examination at 2/3 months is found positive then patient gets treatment for 9 months. Diagnosis in the private sector was done by PPs who were encouraged to use referral facilities for TB laboratory tests under the PPP scheme, and patients were referred to the Treatment Centres for the complete course of treatment under the PPP scheme.