What is a hepatitis B vaccine booster shot?
Hepatitis B vaccine booster shot refers to an additional vaccine administered to maintain or increase antibody levels after completing the basic immunization with hepatitis B vaccine. With the recent increase in attention to health topics, the hepatitis B vaccine booster shot has become one of the hot topics of public discussion. This article will combine the hot data from the entire network in the past 10 days to provide you with a detailed analysis of the relevant knowledge about hepatitis B vaccine booster shots.
1. The necessity of booster shots of hepatitis B vaccine
The basic immunity of hepatitis B vaccine is usually 3 injections (0, 1, and 6 months), but the antibody level of some people may decrease over time after vaccination. Booster shots are recommended in the following situations:
| Crowd type | Recommended vaccination conditions |
|---|---|
| high risk occupation | The antibody titer of medical staff and first responders is <10mIU/ml |
| Chronic disease patients | People with low immune function such as those with liver cirrhosis and HIV infection |
| average adult | Negative antibody test 5-10 years after primary immunization |
2. Recently popular topics related to hepatitis B vaccine on the Internet
According to statistics from social media and news platforms in the past 10 days, the following topics are the most popular:
| Hot search keywords | Search volume (10,000) | Main discussion platform |
|---|---|---|
| Hepatitis B vaccine validity period | 28.5 | Weibo, Zhihu |
| Booster shot side effects | 19.2 | Douyin, Xiaohongshu |
| Free vaccination policy | 15.7 | Baidu, Toutiao |
3. Frequently Asked Questions about Hepatitis B Vaccine Booster
1.Vaccination procedure:Usually only one shot is needed, and antibody levels need to be tested 1-2 months after vaccination.
2.Things to note:
3.Protection effect:Data shows that the antibody positive conversion rate after booster injection can reach more than 95%:
| age group | Positive conversion rate (%) | Antibody maintenance time (years) |
|---|---|---|
| 18-30 years old | 98.2 | ≥15 |
| 31-45 years old | 96.5 | 10-15 |
| Over 46 years old | 92.1 | 5-10 |
4. Latest suggestions from experts (updated in 2023)
1. The Chinese Center for Disease Control and Prevention recommends that high-risk groups have their antibody levels tested every 5 years.
2. WHO guidelines state that people with normal immune function usually do not need routine boosters after completing basic immunization.
3. The latest research found that 87% of vaccinated people still maintain protective antibodies 20 years after vaccination.
5. How to make an appointment for vaccination
The current status of vaccination services in major cities across the country:
| city | Number of vaccination points | Average cost (yuan) |
|---|---|---|
| Beijing | 326 | 120-150 |
| Shanghai | 298 | 110-140 |
| Guangzhou | 275 | 100-130 |
You can make an appointment through the "Healthy China" APP or the WeChat official account of the local CDC. Free vaccination services are provided in some areas.
Conclusion:Hepatitis B vaccine booster shot is an important means to prevent hepatitis B virus infection. It is recommended to decide whether to vaccinate based on personal antibody test results and doctor's advice. Only by maintaining regular physical examinations and scientific protection can we effectively block the spread of hepatitis B.
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