Parts of Asia that relaxed restrictions without a resurgence in coronavirus cases did these three things

South Korea and Hong Kong successfully relaxed pandemic restrictions without having another rise in cases by data sharing, using targeted testing and contact tracing. The varying results of efforts across Asia to contain the virus and reopen society present policy options and perhaps lessons for countries behind on the outbreak’s timeline.Public health specialists who spoke with CNBC said they’re not confident U.S. officials are taking note of what’s working and not working in Asia.