Hepatitis B DNA measurement is generally done using the PCR method, which itself is very sensitive. Medical tests are priced by local pricing authorities, so the fees vary by region. For example, in Zhejiang, the fee for hepatitis B DNA testing is 80 RMB, and it is limited to nationally recognized PCR laboratories, and is only available to patients with positive hepatitis B surface antigen and positive hepatitis B core antigen. For example, in Beijing, the fee for hepatitis B DNA testing is 100 RMB. In other parts of the country, the fee is basically around 100 RMB.