World Enhanced Immunization Day is celebrated annually on 15 December.
The festival was originally set up to eradicate polio.
As one of the few diseases that can be eliminated, polio (also known as polio) is mainly due to the popularity of effective vaccines, which greatly reduces the incidence of its disease.
It is for this reason that WHO recommended the use of four major eradications, including routine immunization, mass campaigns, surveillance, and sweeping vaccination, to successfully eliminate many diseases, and decided to designate 15 December as "World Enhanced Immunization Day".
Not only polio, influenza, pediatric pneumonia, diphtheria, HPV infection and many other diseases, but also due to the popularity of vaccines, the risk of infection has been greatly reduced.
The popularization of hepatitis B vaccine has gradually reduced the rate of hepatitis B infection in China
It should be known that China is a big country with hepatitis B, and now the number of chronic hepatitis B virus infections in China has reached 90 million.
According to the 2014 National Hepatitis B Epidemiological Survey, the rate of hepatitis B virus infection was 0.32%, 0.94% and 4.38% in people aged 1-4 years, 5-14 years and 15-29 years old, respectively.
This means that ---- the younger the age of the population in our country today, the lower the infection rate of hepatitis B.
The greatest credit for this is the large-scale hepatitis B immunization over the past few decades.
Why can the hepatitis B vaccine become our "protective umbrella" for preventing liver disease?
The production of hepatitis B vaccine is a component of the hepatitis B virus surface antigen extracted from the person with hepatitis B virus, which is those that are not contagious.
People who have been vaccinated with hepatitis B vaccine, this preparation will form a "protective umbrella" in people's bodies, and will fully resist the invasion of hepatitis B virus. Keep people free of the hepatitis B virus. Of course, the "umbrella" also has an expiration date.
Time varies from person to person. It is necessary to test hepatitis B two-and-a-half to get the result, whether the "protective umbrella" in the body has been closed. Depending on the test report, choose whether to also get the hepatitis B vaccine.
Different groups of people are also vaccinated differently
adult
When the hepatitis B two-and-a-half test was carried out, the report showed that the "protective umbrella" against the hepatitis B virus had been closed, and then we had to arrange the time to inject the hepatitis B vaccine according to the dose.
A total of three injections are to be injected, and when the first injection is completed, the injection time of the second injection is within one month after the first injection, and the third injection is 6 months after the first injection.
Injection time for newborns
For newborns of this time, the first injection should be given within 24 hours of birth.
General hospitals are in the newborn just landed, cut the umbilical cord to clean the newborn, the first injection, the second injection time is the day of the full moon of the newborn by the family to the hospital preventive injection clinic to arrange injection, the third injection time is the sixth month after the first injection.
For newborns whose parents are both hepatitis B virus infection, one more dose of hepatitis B immunoglobulin will be injected as a high titer than the average newborn.
The same should be injected within 24 hours, the general hospital is in the newborn just landed, cut the umbilical cord to clean the newborn's first time in different parts of the injection of hepatitis B vaccine and injection of hepatitis B immunoglobulin, can play a blocking effect.
A second dose of hepatitis B vaccine is given in the second month of the newborn and a third dose of the hepatitis B vaccine is given at the sixth month of the newborn.
After most vaccinations, there is no guarantee that everyone will succeed
The hepatitis B vaccine is no exception.
In many cases, the hepatitis B vaccine may fail due to improper storage, irregular vaccination, or a weakened individual's immune system.
Therefore, once the entire vaccination process of the hepatitis B vaccine is completed, the hepatitis B should be checked for two and a half pairs to see if the vaccination is successful.
At the same time, a very small number of people will also have abnormal liver function while the surface antibody is positive, which will remind the manifestations of hepatitis, so at this time, it is necessary to be vigilant against the possibility of infection with mutant virus strains, and it is necessary to go to the hospital for examination in time.
bibliography:
[1] Gary s. Marshall, translated by Zhou Zumu. Vaccine Manual: A Practical Guide for Clinicians[M]. 4th ed. Beijing: Peking University Medical Press, 2014. · Guidelines for the prevention and treatment of chronic hepatitis B (2019 edition)