The impact of science and technology on health care has undoubtedly been considerable. While scientific research has helped to improve treatment for numerous illnesses and serious health conditions, technology is constantly evolving and important in the health care setting. Vaccines continue to revolutionise our ability to prevent disease and improve health. During the 12-hour Swasth Bharat, Sampann Bharat telethon, we discussed the role of science and technology in health. Here are some excerpts.