Clinical assessment of COVID-19 outbreak among migrant workers residing in a large dormitory in Singapore

In Singapore, a small city-state of 5.7 million population, early detection and contact tracing for coronavirus disease 2019 (COVID-19) allowed for rapid isolation of cases with prompt containment of spread. With this strategy, the early pace was slow and the milestone of 1000 infections was crossed more than two months after, with the majority due to importations. The epidemic's trajectory, however, surged thereafter with outbreaks noted in...