Most of them are carriers of hepatitis B virus, and their viral load is relatively low, and the immunity of adults is relatively strong, so the risk of infection is relatively small. However, there are some small three positive is due to virus mutation, the body’s viral load is high, this is more infectious, couples have sex with the risk of being infected, so the safest way is to each other in advance for the hepatitis B vaccination. If you have sex, it is best to use a condom.