Hepatitis B DNA result <1.00×10^2 is a negative result if the hepatitis B virus gene is less than 2 times 10. Hepatitis B DNA, also known as hepatitis B virus gene, is the most direct, highly sensitive and specific indicator of hepatitis B virus infection, hepatitis B virus gene is positive if it is greater than 2 times 10, suggesting that the hepatitis B virus is replicating and infectious. Hepatitis B virus DNA result <1.00 x 10^2, that is, the hepatitis B virus gene is lower than 2 times 10, generally indicates that the hepatitis B virus is not replicating and is negative. If the hepatitis B patient’s hepatitis B virus gene test result is <1.00ⅹ10^2, normal liver function indicates that the condition is more stable, the hepatitis B virus replication is inactive, the infectiousness is relatively small, but it does not mean that the virus is no longer infectious, or has a certain degree of infectiousness. Therefore, at this time, hepatitis B patients should do a good job of isolation measures to avoid infecting others. In addition, it is recommended that family members and friends around the timely vaccination against hepatitis B to prevent infection, so as to avoid adverse effects.