6.4 per cent of cases may be infected by patients who are unknown carriers

A research study jointly conducted by the Ministry of Health, National Centre for Infectious Diseases and Duke-NUS Medical School showed that among 157 COVID-19 cases, 10 people do not show symptoms of infection, which is 6.4 per cent of the 157 cases. To effectively eliminate the virus, it is important to keep to the safe distancing measures, whether one is infected or not.