Anshari Saifuddin is working as a medical staff member and lecturer in the Division of Allergy and Clinical Immunology Department of Internal Medicine, Faculty of Medicine, University of Indonesia, Ciptomangunkusumo General Hospital, Jakarta. His experience as a staff memeber is more than 4 years. His interests are in vaccines, autoimmunity, and immunodeficiency, especially HIV. He finished his internal medicine specialisation at the University of Indonesia. He is a member of the Adult Immunization Task Force and the Indonesian Society of Internal Medicine and a member of COVID-19 Vaccination Advocation Team of the Executive Board of the Indonesian Doctors Association (IDI).