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Evolution of the ART eligibility in the UTT trial areas from 1 January 2012 to 31 December 2016. WHO, World Health Organization; N, National recommendations; C, Control arm of the trial; I, intervention arm of the trial; A, Intervention arm A in the PopART trial; B, Intervention arm B in the PopART trial, *shift to universal antiretroviral therapy in the PopART communities in Zambia as part of a pilot for a national roll out.
