The outbreak of the Severe Acute Respiratory Syndrome (SARS) in 2003 revealed the need to strengthen Singapore’s public health surveillance system, in providing early warning of disease outbreaks in other countries, and identifying unusual trends in infectious diseases and disease syndromes in our population. Enhancing our medical surveillance capabilities would enable us to be better prepared, and more able to respond to outbreaks and the potential importation of diseases into Singapore. On 15 July 2006, the Communicable Diseases Live & ENhanced Surveillance (CDLENS) system was launched. CDLENS was developed as part of the ongoing enhancements of our public health surveillance capabilities. As a one-stop internet portal, it can be accessed anytime, anywhere, for real-time information on infectious disease news.