Tsetsegmaa, a retired nurse, delivers tuberculosis medicine to a patient in her home, a yurt. Tsetsegmaa walks 10 km every day to distribute these medicines to patients in their homes in Khan-Uul District, on the outskirts of Ulaanbaatar, Mongolia. She volunteers for the Global Fund-supported Mongolian Anti-Tuberculosis Association, whose approach of visiting patients in their homes dramatically increases the probability of successful treatment. June 2019.