China's current COVID-19 policy is still effective in fending off the new and more contagious variant of the coronavirus, known as Omicron, said the National Health Commission (NHC), noting that the country has established a special nucleic acid method targeting the new variant, and it is monitoring the genetic sequencing of possible imported virus cases. The NHC said that the new variant does not affect the sensitivity of the country's mainstream nucleic acid testing kits. It said ...