China has ramped up its testing with the country now requiring nucleic acid tests done within the past 48 hours just to enter public spaces, offices and even schools. However, it is estimated that the testing could cost some 1.7 trillion yuan a year in China’s major cities alone, or about 1.5% of the country’s gross domestic product.China has ramped up its testing with the country now requiring nucleic acid tests done within the past 48 hours just to enter public spaces, offices and even schools. However, it is estimated that the testing could cost some 1.7 trillion yuan a year in China’s major cities alone, or about 1.5% of the country’s gross domestic product.