High scores, please ask experts and unscrupulous doctors to inject vaccines indiscriminately! !

Hello, my friend! According to the information you provided, three injections of hepatitis B vaccine did not produce the ideal surface antibody. There are several possible reasons: (authoritative answer)

1, the third dose of hepatitis B vaccine was not rechecked in time: hepatitis B vaccine was inoculated according to the procedure of 0 16, and hepatitis B should be rechecked every 30-45 days after the third dose. You didn't check until two years later. It is possible that antibodies were produced at that time, but it took two years (slowly consumed in the process of fighting against the invasion of hepatitis B virus) and turned negative again.

2. False negative results: It may be because the titer of hepatitis B was very low at that time and could not be found by the existing general qualitative detection methods, so false negative results only appeared when hepatitis B was examined in health centers. At present, the most advanced detection method is quantitative detection using Abbott technology in the United States. The results of quantitative detection are much more accurate than those of qualitative detection, which is also recognized as the most accurate detection method in the world.

3. Other reasons will also lead to the inability to produce antibodies after 3 doses of vaccine. For example, people with low immunity, because the immune response to the vaccine is too weak, only produce a small amount of antibodies, so that traces of surface antibodies can not be detected. At this time, the dose of hepatitis B vaccine can be increased; There are still a few people who are not sensitive to hepatitis B virus. These people are not easy to get hepatitis B, and it is not easy to produce antibodies by vaccination.

4. Different people have different doses. Adults without antibodies need to be injected with three doses of hepatitis B vaccine, and the dose is generally 10ug-20ug-20ug.

5. In summary, the following suggestions are made:

A, it may be that the detection means and instruments of local health centers are limited. It is suggested to recheck the quantification of hepatitis B in the third-class hospitals. If five items are still negative, hepatitis B vaccine should be injected according to the 0 16 procedure. You can also do the second point you said, it doesn't matter. The first dose of 5ug is small, which may affect the effect.

B, if the antibody is still not produced, you need to increase the injection dose (as shown above). If it was made in China before, it is best to play imported hepatitis B vaccine;

C, after the third injection, every 30-45 days or so, double-check hepatitis B quantitative.

Hurry up is to let you go at once, without waiting for a month. Good luck! Produce hepatitis B surface antibody as soon as possible!