SINGAPORE -- Singapore is on the verge of becoming Asia's first major country to fully vaccinate the majority of its population against COVID-19, stepping closer -- at least in theory -- to exiting the pandemic. A government that once spared no effort to trace every case and contain transmission is now drawing up a road map for "living with" the virus. Rather than focusing on "herd immunity," officials now say the disease is unlikely to disappear but can be managed as a less threatening endemic illness like influenza.