Dr. Sergio Cimerman has been working in Instituto de Infectologia Emílio Ribas and Professor of Infectious Diseases in University of Mogi das Cruzes. Past President of Panamerican Society of Infectious Diseases ( 2009-2011) and President of Brazilian Society of Infectious Diseases( 2016-2017; 2018-2019). Dr Cimerman published many articles in intestinal parasitosis and large experience in management of HIV patients and Hepatitis C.