Hepatitis B vaccine is a special drug used to prevent hepatitis B. In modern society, many people like to eat out. Sometimes if the restaurant is in poor health, it is easy to cross infection and hepatitis B, so we should pay special attention to the most direct way is to vaccinate against hepatitis B.
After vaccination, it can stimulate the immune system to produce protective antibodies, which exist in human body fluids. Once the hepatitis B virus appears, the antibody will act immediately, clear it, prevent infection, and will not harm the liver, so that the human body has the immunity to prevent hepatitis B, so as to achieve the purpose of preventing hepatitis B infection.
It is mainly used for the prevention of hepatitis B in infants and young children. One injection is needed on the day of birth, and one injection is needed at the end of one month and six months respectively.
But not only infants, but also high-risk groups need to be injected with hepatitis B vaccine, such as infection doctors or surgeons, or people who often contact with blood products; kindergarten nursery staff; Or patients who often receive immunosuppressant treatment, such as patients who receive transplantation, due to the reduction of resistance, the infection rate of both virus and bacteria will rise, and people who often contact with hepatitis B virus carriers or hepatitis B patients in their living and working environment, especially those with family history. For these high-risk groups, should also check hepatitis B two and a half, if all indicators are negative, it is recommended to vaccinate hepatitis B vaccine.
After the first injection of hepatitis B vaccine, only 30% of the people produced hepatitis B surface antibody, and the antibody effect was very unstable; after the second injection, 90% of the people produced antibody; after the third injection, the positive rate of antibody reached over 96%, and the antibody effect remained at a high level.
However, it is not certain that hepatitis B will not be infected after the injection of hepatitis B vaccine. Whether or not hepatitis B is infected is related to the immunity and antibody titer of the infected person. When the antibody titer of the infected person is insufficient to protect or the self immunity is low, it is easy to infect hepatitis B.
Therefore, a vaccine can not do lifelong immunity, adults also need to be vaccinated with hepatitis B vaccine.
Overview of hepatitis B, the abbreviation of hepatitis B, is a disease caused by hepatitis B virus infection. Its clinical manifestations are: fatigue, anorexia, nausea, abdominal distention, pain in the liver area, etc. if the above situation occurs, it is necessary to check it in a regular hospital in time to avoid delaying the best treatment opportunity. Hepatitis B is very harmful and infectious, and may be passed on to the next generation. In addition, some patients may develop cirrhosis or liver cancer and die. Therefore, it is very important to prevent hepatitis B. among them, the most direct and effective way is to get hepatitis B vaccine. How often do you get hepatitis B vaccine?
Step / method:
1. Why can hepatitis B vaccine prevent hepatitis B? That's because, by injecting hepatitis B vaccine, it will activate the human immune system and produce hepatitis B surface antibody, which can ensure that the human body has immunity to hepatitis B virus and prevent infection with hepatitis B virus, but it will continue to decline over time.
2. How often hepatitis B vaccine is administered depends on whether it is an adult or a child. If it is a newborn baby, it is usually administered once within 24 hours after birth. One month later, one more vaccine is administered. Six months later, one more vaccine is administered, a total of three injections. Therefore, parents of children need to pay attention to this problem.
3. If it is not a newborn, for children or adults, after the hepatitis B vaccine is injected, the first test is needed. If the three systems of hepatitis B are negative, and the transaminase is normal, the hepatitis B vaccination can be carried out according to the (0.1.6) plan, that is, one injection, one injection one month later, and one injection six months later.
4. In addition, in some cases, for example, people who are allergic to hepatitis B vaccine need to use it with caution, for example, they have had fever, serious infection, or other diseases that are not suitable for vaccination, so they need to postpone vaccination, and make plans under the guidance of doctors, so as to avoid other adverse consequences.