On September 4th, 2023, Prof. Apichat Asavamongkolkul, Dean of the Faculty of Medicine Siriraj Hospital, Mahidol University; Assoc. Prof. Prapat Wanitpongpan, Deputy Dean for International Relations, and the Assistant Deans for International Relations; and Assoc. Prof. Watip Tangjittipokin, Program Director of M.Sc. Program in Immunology, Department of Immunology welcomed distinguished guests from The Faculty of Medicine Universitas Surabaya, Indonesia: Dr. Risma Ikawaty, Vice Dean of Academic and Student Affairs; Dr. Jefman Marzuki, Clinical Pharmacology Specialist, Research Coordinator; and Dr. Kelvin M. Soetanto, Academic Staff and Ph.D. student in Department of Immunology, Faculty of Medicine Siriraj Hospital on visit and discussion at Faculty of Medicine Siriraj Hospital, Mahidol University. On this occasion, our guests also visited the Department of Immunology, Siriraj Center of Research Excellence for Systems Pharmacology, and Siriraj Museum.