China will no longer release the figure of asymptomatic cases, the National Health Commission said Wednesday.The nucleic acid testing is now conducted on a voluntary basis and many asymptomatic carriers would no longer take the testing, making it impossible to monitor the accurate statistics of such carriers, the commission said.China will no longer release the figure of asymptomatic cases, the National Health Commission said Wednesday.The nucleic acid testing is now conducted on a voluntary basis and many asymptomatic carriers would no longer take the testing, making it impossible to monitor the accurate statistics of such carriers, the commission said.