Welcome, Dr. Joanna Lea Odenthal, a resident from the Oregon Health &Science University, USA, to undertaking an elective study at the Division of Infectious Diseases, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, under the supervision of Assoc. Prof. Wanatpreeya Phongsamart starting from February 13th – March 3rd, 2023.