Should I get a hepatitis B vaccine if my hepatitis B antibody level is less than 100 IU/mL?
When hepatitis B antibody levels are less than 100 IU/mL, vaccination may be needed, but it is not always necessary. The actual need varies from person to person. Detailed analysis is as follows:
1. Vaccination recommended
Hepatitis B virus is a common infectious disease caused by the hepatitis B virus. Patients with hepatitis B may experience symptoms such as fatigue and body aches. However, since many people have received the hepatitis B vaccine, antibody levels produced by the vaccine naturally decline over time. When hepatitis B antibody levels fall below 100 IU/mL, a booster dose is usually recommended.
2. Vaccination not necessarily required
A hepatitis B antibody level between 10 IU/mL and 100 IU/mL is considered weakly positive. Generally, if antibody levels are above 15 IU/mL, a booster shot is not typically needed. Therefore, when hepatitis B antibody levels are below 100 IU/mL, vaccination may not be required. Whether or not to receive a booster should be determined based on individual circumstances.
After receiving the hepatitis B vaccine, avoid exposing the injection site to water to prevent infection and promote proper wound healing. During this period, it is recommended to maintain a light and easily digestible diet, avoiding raw, cold, spicy, or irritating foods.