@justthefacts85 What is the false negative rate on PCR? If you test every day, how likely is a false negative within six days?
@事实85 PCR的假阴性率是多少？如果你每天测试，六天内出现假阴性的可能性有多大？
@justthefacts85 What is the false negative rate on PCR? If you test every day, how likely is a false negative within six days?
@事实85 PCR的假阴性率是多少？如果你每天测试，六天内出现假阴性的可能性有多大？