4.07e04, refers to 4.07*10 to the fourth power, the hepatitis B virus is moderately replicating, and the severity needs to continue to test liver function, liver ultrasound and other comprehensive judgment. Hepatitis B DNA value of 4.07*10 to the fourth power, refers to the number of copies of hepatitis B virus detected per milliliter of blood, that is, the body is infected with the hepatitis B virus, and this amount of virus is moderate, indicating that the virus is more actively replicating, and has a certain degree of infectiousness. The severity needs to continue to test the liver function, liver ultrasound examination, etc. If the liver function shows abnormalities such as significantly elevated aminotransferases, it is usually necessary to carry out antiviral treatment with entecavir, tenofovir, interferon, etc.; if the liver function, liver ultrasound and other examinations are normal and there is no physical discomfort, usually follow-up observation is sufficient.