Do you have antibodies after vaccination? Lifelong immunity?

According to popular science, after vaccination, the protective effect of antibody responders generally lasts at least 12 years, and some research results confirm that it can last for more than 20 years. If you want to know whether you have enough antibodies, you can draw blood for quantitative detection of hepatitis B surface antibody, and it is best to test within one month to three months after the last injection of hepatitis B vaccine, and the antibody level is the highest at this time. Focus