February 4, 2019, the master class of Professor V.A. Sinzerling took place on the topics: "Tuberculosis" and "Infection caused by the human immunodeficiency virus". Pathologists, phthisiatricians, employees of the Department of Phthisiology TMA, masters and clinical residents of the Department of Phthisiology TMA, as well as students of the 401,402 group of the Medical Faculty of TMA participated in the master class. The master class was held at a high level, all participants were satisfied.