S. Korea shifts omicron strategy
For the past two years, South Korea waged a successful battle against covid-19 with a so-called three-T strategy: It ramped up lab "tests" to ferret out infections, it "traced" con…
For the past two years, South Korea waged a successful battle against covid-19 with a so-called three-T strategy: It ramped up lab "tests" to ferret out infections, it "traced" con…