Influenza vaccines have been used for >60 years and have proven safe and effective. However, use of seasonal influenza vaccine in South-East Asia is sparse, with the majority of doses available for cost in the private sector. In 2012, the World Health Organization’s (WHO) Strategic Advisory Group of Experts (SAGE) recommended annual influenza vaccination for five high-risk groups: pregnant women, the elderly, persons with a chronic illness, young children, and healthcare personnel.