On Friday 16th September 2016, GUNKUL Engineering Public Company Limited, together with the Public Health Center 38, organized health promotion, disease prevention, and immunization programs by providing Rubeola, Diphtheria, and Tetanus Vaccination to the executive management and staff of GUNKUL Group. GUNKUL concerned about employees’ health because the research found that antibody levels among adults aged 20-50 years old show a significant age-related decrease in antibody levels with increasing age. Decreasing in antibody levels can cause life-threatening diseases.