The price of a hepatitis B booster is the price of a single dose of hepatitis B vaccine. The hepatitis B vaccine is available in different sizes, either 10μg or 20μg, and each is available in domestic and imported versions, so the price is not that consistent. Generally, the domestic 10μg or 20μg is within 100 yuan, and in some places within 50 yuan, while the imported one is usually more than 100 yuan. After a single injection, the patient will generally be able to boost the antibodies further, allowing them to last a little longer. If the injection is not given, the antibodies are likely to drop to the negative range after a period of time and the immunity to the hepatitis B virus will be lost, so a booster shot for hepatitis B is necessary. In addition to the price of a hepatitis B vaccine, it also includes the cost of the injection as well as the syringe and lysis medium, so you should consult your local immunization station for the exact price.