On 15 December 2020, the opening ceremony, Assst Prof. Dr. Weerapong Phumiratanaprapin, Dean of Faculty of Tropical Medicine, Mahidol University and Chairperson of Organizing Committee commenced the program with the meeting report, followed by two welcoming addresses from Dr. Opas Karnkawinpong Director-General, Department of Disease Control The Ministry of Public Health, and Prof. Nicholas Day, Director of the Mahidol Oxford Tropical Medicine Research Unit, Thailand (MORU). The meeting is officially opened by Prof. Banchong Bahaisavariya, President of Mahidol University.

            Research Professor Dr. Jetsumon Prachumsri, Vice-chairperson of Organizing Committee introduced keynote speaker Dr. Tedros Adhanom Ghebreyesus , Director-General World Health Organization to deliver the 25th Chumlong-Tranakchit Harinhasuta Lecture.