The National Centre for Infectious Diseases, previously known as the Communicable Disease Centre, is a national public health institute under the Ministry of Health of Singapore. Located next to Tan Tock Seng Hospital in Novena, all patients within the city-state who are affected with a highly contagious disease are also quarantined at the NCID and is used to control an outbreak of such diseases. The executive director of the hospital is Professor Yee-Sin Leo.

Tan Tock Seng Hospital is a tertiary referral hospital in Singapore, located in Novena. The hospital has 45 clinical and allied health departments, 16 specialist centres and is powered by more than 8,000 healthcare staff. Tan Tock Seng Hospital is Singapore's second-largest acute care general hospital with over 1,500 beds. TTSH has the busiest trauma centre in the country; 100 trauma cases are seen every day and 100 trauma surgeries are performed daily.