概括
现在接种乙型肝炎 (HB) 疫苗可以挽救生命,疫苗诱导的获得性免疫缺陷综合征 (AIDS) 风险最小. 不建议推迟HB疫苗接种,即使担心潜在的污染.
科学领域:
- 公共卫生 公共卫生
- 疫苗学 疫苗学 疫苗学
- 流行病学 流行病学
背景情况:
- 在乙型肝炎疫苗中,人们普遍担心获得性免疫缺陷综合征 (艾滋病) 感染,这可能会降低疫苗接种率.
- 在两年内获得合成乙型肝炎疫苗的可用性使一些人考虑推迟目前的疫苗接种.
研究的目的:
- 为了比较与立即接种乙型肝炎疫苗相关的死亡风险,与延迟接种未来合成疫苗的疫苗相比.
- 评估乙型肝炎和潜在的疫苗诱导性获得性免疫缺陷综合征 (艾滋病) 的死亡风险.
主要方法:
- 开发了一个决策分析模型来比较风险.
- 该模型评估了每年有5%的乙型肝炎感染风险的个体的结果.
- 纳入了对乙型肝炎死亡率,疫苗诱导的艾滋病率和置信区间的估计.
主要成果:
- 据估计,立即接种乙型肝炎疫苗每10万人中可挽救25人,每年乙型肝炎风险为5%.
- 疫苗诱导的获得性免疫缺陷综合征 (艾滋病) 的估计率为零.
- 有95%的信心,疫苗诱导的艾滋病率低于每10万人的8%.
结论:
- 推迟乙型肝炎疫苗接种对于推的个人来说不被认为是合理的,除非疫苗诱导的获得性免疫缺陷综合征 (艾滋病) 的发生率远高于目前的估计.
- 立即接种乙型肝炎疫苗的好处远远超过了疫苗引起的艾滋病的最小,几乎为零的风险.
更多相关视频
相关概念视频
Vaccinations
Overview
Factors Affecting the Risk of Infection
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin create...
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin create...
Immunodeficiency Diseases
Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
There are three main causes of immunodeficiency disorders...
There are three main causes of immunodeficiency disorders...
Smallpox
Smallpox is a severe contagious disease caused by the Variola major virus, a double-stranded DNA member of the Poxviridae family.Variola major transmission occurs primarily via inhalation of virus-laden droplets or direct contact with infectious scabs. The incubation period averages approximately seven days, although it may range from 7 to 17 days depending on the inoculum and host factors.Clinically, the prodromal phase is marked by an abrupt onset of high fever, malaise, headache, and myalgia.
Hepatitis
Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver. The...
Viral Hepatitis I: Introduction
Viral hepatitis is an inflammatory condition of the liver caused by infection with hepatotropic viruses, most commonly hepatitis A, B, C, D, and E. Despite variations in structure and transmission, all viruses mentioned infect hepatocytes and provoke immune responses that can hinder liver function. Additionally, some non-hepatotropic viruses can also lead to hepatic inflammation.Hepatitis A VirusHepatitis A virus (HAV) is transmitted through the fecal–oral route, typically by ingestion of food...


