In daily life, we always hear the three words "immunity".
If the body's immunity declines, all kinds of discomfort will also come.
But ordinary immunity is only our body's own defense against small viruses, if we encounter some larger viruses, or even new viruses, such as the new crown virus that is raging around the world today, human immunity can not be recognized in time, or the strength is weak and can not resist.
At this time, we need to carry out intensive immunization, and we need to further strengthen on the basis of conventional immunization.
On World Enhanced Immunization Day, immunization focuses on prevention
World Enhanced Immunization Day is celebrated annually on 15 December, a holiday established to eradicate polio, also known as polio.
In order to improve the health quality of the whole population, WHO has called for attention and strengthening of vaccination through this festival.
The popularity of the hepatitis B vaccine has allowed many newborns to avoid the threat of hepatitis B virus
Generally speaking, after the birth of a child, the immunity of the mother in the body will gradually weaken or disappear.
Especially for the hepatitis B virus, newborns are susceptible to infection due to their poor resistance. Once infected with the hepatitis B virus, the child becomes a person who continues to carry the hepatitis B surface antigen.
According to clinical data, if children within 1 year of age are infected with hepatitis B virus, more than 90% become chronic hepatitis B virus carriers; if people over 7 years old are infected, there is only a 10% chance.
Therefore, this is why our country stipulates that after the birth of a newborn, it is necessary to receive hepatitis B vaccine and other vaccines included in immunization in the hospital.
Of course, the hepatitis B vaccine is not once and for all, and at a certain time, the antibody will gradually weaken or disappear, so it needs to be strengthened at this time.
The same is true for adults, where timely vaccination not only strengthens childhood vaccines, but also strengthens resistance and immunity to epidemic diseases.
What do I need to be aware of when getting the hepatitis B vaccine?
1. Examination before injection
Not every patient can be vaccinated against hepatitis B.
In general, if the patient has an acute illness or happens to be in the acute onset of a chronic disease, then hepatitis B vaccine is not suitable. If the patient has problems with abnormal liver function, the hepatitis B vaccine should not be injected for the time being.
In order to avoid rejection as much as possible, patients should be examined before vaccination, so as to fully understand the health of the body, and can be vaccinated after excluding various adverse factors.
Second, check the effect of vaccine injection
If the vaccine is not stored or the vaccination is not standardized, then the vaccination of the vaccine is likely to fail, so the patient should regularly go to the hospital to check the five items of hepatitis B to judge the effect of vaccination.
Usually, patients can check the effectiveness of vaccination 7 months after the vaccination, and if hepatitis B surface antibodies are present, then the vaccination is effective.
If the hepatitis B surface antibody shows a weak positive state, it is necessary to carry out intensive injection in time.
Do not vaccinate at the same time as the measles vaccine
Although hepatitis B vaccine and some other types of vaccines, such as BCG vaccine, Japanese encephalitis vaccine, etc., do not interfere when vaccinated together.
However, there will be exclusion from certain vaccines, such as the measles vaccine.
If the patient is vaccinated with both the hepatitis B vaccine and the measles vaccine, then they will interfere with each other, thereby reducing the immune effect of the vaccine, so it is best not to put the hepatitis B vaccine and the measles vaccine together at the same time.
4. Regular review
The efficacy of the vaccine is limited, usually 5 years.
Over time, the protective antibodies in the patient's body will gradually disappear, resulting in an increasing risk of infection with hepatitis B virus, so patients should go to the hospital regularly for re-examination and check the titer of surface antibodies.
If the patient's antibody titer is relatively small, it is likely that they will have to re-inoculate or inject a booster needle.
All in all, after the hepatitis B vaccine is injected, the vaccinated person also needs to continue to observe the physical condition and regularly go to the hospital for hepatitis B examination.
Once there is a decline in antibodies, then it should be treated in time, and the specific treatment method should be selected according to the test results of the five items of hepatitis B and the situation of antibodies.
bibliography:
[1] Wang Fuzhen, Zhang Guomin, Shen Liping, et al. Comparative analysis of seroepidemiological findings of hepatitis B in different endemic areas of China in 1992 and 2014[J].Chinese Journal of Preventive Medicine,2017,51(6):462-468.
[2] Diao Liandong,Sun Xiaodong. Practical Vaccinology[M]. Shanghai:Shanghai Science and Technology Press,2015.]