Fig. 2From: A cross-country core strategy comparison in China, Japan, Singapore and South Korea during the early COVID-19 pandemicCOVID-19 outbreak curve and timeline of implementation of major interventions in Singapore. Note: ① On Jan 23, the first case of COVID-19 was reported and established a Multi-Ministry Task Force. ② Since Feb 1, Singapore imposed entry restrictions on visitors from China; returning residents and long-term pass holders are subject to a 14-days quarantine. ③ On Feb 10, Activating a network of more than 800 (PHPCs). ④ On Feb 18, issued isolation decree. ⑤ Since March 17, inbound travelers who have symptoms such as fever and cough must take throat swabs. ⑥ On March 30, the government of Singapore launched the “Trace Together” APP. ⑦ Since March 24, prohibiting short-term visitors and cruise ship stops. ⑧ Since March 27, everyone who enters Singapore without a Stay Home Notice at a designated facility must wear an electronic tracker. ⑨ Since April 5, the government implemented strict community and social measures and encouraged people to telecommute. ⑩ Since June 1, normal social life has gradually been restored in three stagesBack to article page