Is hepatitis B infected?

In general, hepatitis B antibody is not infected.

Hepatitis B antibody is a protective antibody, can resist the invasion of hepatitis B virus, protect the body from infection. However, it needs to be noted that there is hepatitis B antibody is not necessarily infected with hepatitis B virus, which needs to be based on antibody titer, antibody persistence and virus infection and other factors for comprehensive consideration.

The higher the titer of hepatitis B antibody, the stronger the protection and the longer the duration. In general, antibody titers greater than 100mIU/ml are effective against hepatitis B virus invasion. However, over time, antibody titers may gradually decrease, and regular testing and supplementary vaccination are needed to maintain antibody titers and persistence.

Even if there is hepatitis B antibody, if the amount of hepatitis B virus exposure is very large, there is still a risk of infection. Therefore, in the environment where there may be a large amount of hepatitis B virus exposure, such as medical treatment, beauty and other places, necessary protective measures should be taken, such as wearing gloves, using disinfectant, etc.