On October 21, 2021, Associate Professor Dr. Yajai Sitthimongkol, Dean of the Faculty of Nursing Mahidol University, and Mrs. Chamaiporn Charoenkraikamol, Head of Department of Nursing Siriraj Hospital, jointly organized the homage-paying ceremony and laid the pedestal tray for Her Royal Highness Princess Srinagarindra, the Princess Mother, marking her birthday anniversary and National Nurses' Day in 2021. The ceremony was attended by Ms. Nunthaporn Poungkaew, together with faculty members and administrative teams from the Faculty of Nursing Mahidol University and Department of Nursing, Siriraj Hospital. The event took place at Sala Siriraj for 100 years in Siriraj Hospital

At 9:00 a.m., Associate Professor Dr. Yajai Sitthimongkol, Dean of the Faculty of Nursing, Mahidol University, along with Clinical Professor Wisit Vamvanich, Director of Siriraj Hospital, and Mrs. Chamaiporn Charoenkraikamol, Head of Department of Nursing, Siriraj Hospital, joined the opening ceremony of the activity "Continuing His Majesty's Aspirations for People’s Health on the National Nurses Day". In the event, there were services given to the public, including basic health check-up, blood pressure measurement, body mass index assessment, breast self-examination demonstration teaching, physical health problems and mental health, self-care advice to prevent complications after contracting COVID-19, sleep counseling, and Thai massage services. The activities were held at the multipurpose area of the Faculty of Nursing, Mahidol University, Bangkok Noi.