Will people be infected after receiving hepatitis B vaccine?

Will people be infected after receiving hepatitis B vaccine?  The positive rate of surface antibody can reach more than 95% after injection of three injections of hepatitis B vaccine in general patients.

Whether you will be infected with hepatitis B virus after hepatitis B vaccine depends on whether hepatitis B protective antibodies, that is, hepatitis B surface antibodies, are produced after hepatitis B vaccine. In general, the positive rate of surface antibody can reach more than 95% after three injections of hepatitis B vaccine.

That is to say, if the surface antibody titer is very high, then this kind of exposure to hepatitis B virus is difficult to be infected. But if no protective antibodies are produced, in this case, even if the hepatitis B vaccine is not given, it is still possible to be infected in this case. There is also a situation where even though hepatitis B vaccine has been given, there is a virus mutation in the hepatitis B virus, so there is a risk of infection.

There are also protective antibodies, but the antibodies are very low and the patient has been exposed to a large amount of virus, so the antibodies are not enough to neutralize the virus. In this case, there is a risk of infection.

Therefore, it is not that everything will be fine after the hepatitis B vaccine. After the vaccine, we must test: first whether antibodies are produced, the level of the second antibody, if the antibody is at a relatively low level, at this time, it is recommended to be safe.

Get hepatitis B booster vaccine. What are our precautions after the hepatitis B vaccine? That is to say, when the hepatitis B vaccine is injected: first, you must pay attention to whether there is any allergic reaction to the vaccine after the injection, and you cannot leave immediately after the hepatitis B vaccine.

It must be observed for half an hour before leaving the injection place. Second, after the hepatitis B vaccine, some people may have fever. At this time, symptomatic treatment should be carried out according to the body temperature. If the body temperature is too high, you can use antipyretics.

If the adult is below 38 degrees, generally drink more warm water. The third is to pay attention to the production of protective antibodies after hepatitis B vaccine. In general, after three shots of hepatitis B vaccine, 95% of people will develop protective antibodies, but it is true that 5% of them.

Although the whole course of hepatitis B vaccine is given, there is not enough antibody production. This situation needs to be repeated. The whole course of hepatitis B vaccine injection.

(source:chinanet, reference only)

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