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相关概念视频

Barriers to Effective Communication II01:21

Barriers to Effective Communication II

3.7K
The barriers to effective communication also include cultural barriers, semantic barriers, gender barriers, and time constraints.
Cultural barriers:
Differences in values, beliefs, religion, knowledge, and tradition can significantly impact communication. Awareness of nonverbal cues is critical, especially when conversing with a patient from a different culture. What appears appropriate in one culture may be inappropriate in another.
Semantic barriers:
As a result of their tendency to use...
3.7K
Vaccinations01:51

Vaccinations

44.5K
Overview
44.5K
Factors Affecting Drug Distribution: Physiological Barriers01:23

Factors Affecting Drug Distribution: Physiological Barriers

207
Drug distribution in the body is intricately regulated by various physiological barriers that control the passage of substances. These include the capillary endothelial barrier, the blood-brain, blood-cerebrospinal fluid, blood-placental, and blood-testis barriers.
The capillary endothelial barrier allows only smaller molecules below 600 Da (Daltons) to pass through. It also restricts drugs like heparin that are bound to blood components, limiting their movement within the bloodstream.
The...
207
Methods Of Healthcare Delivery System01:26

Methods Of Healthcare Delivery System

3.3K
At the different levels of the healthcare system, we see varying methods of healthcare used. These methods include managed care systems, case management, and primary healthcare.
Managed Care System:
The managed care system is designed to control the cost while maintaining the quality of care. The patient's care from admission to discharge is planned by the primary care provider or the case manager, also known as the gatekeeper. In a managed care system, the number of care providers is...
3.3K
Development of Immunocompetence01:22

Development of Immunocompetence

309
The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
309
Immunodeficiency Diseases01:25

Immunodeficiency Diseases

941
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...
941

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相关实验视频

Updated: Jul 5, 2025

Fabrication of Pulsatile Polymeric Microparticles Encapsulating Rabies Antigen
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Fabrication of Pulsatile Polymeric Microparticles Encapsulating Rabies Antigen

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为什么COVAX设施无法弥合"免疫缺口"?

Qi Shao1,2

  • 1Nanjing University of Aeronautics and Astronautics, Nanjing, China. 598152706@qq.com.

Journal of public health policy
|January 19, 2024
PubMed
概括

COVID-19疫苗全球接入 (COVAX) 设施旨在公平地分配疫苗,但由于激励,分配和执法问题而不足. 将COVAX转变为一个信息中心可以改善全球免疫接种的进展.

科学领域:

  • 全球卫生政策 全球卫生政策
  • 疫苗学 疫苗学 疫苗学
  • 国际关系 国际关系

背景情况:

  • 世界卫生组织于2020年4月启动了COVID-19疫苗全球接入 (COVAX) 设施.
  • COVAX的设计旨在确保全球平等地获得COVID-19疫苗.
  • 尽管COVAX采用了创新方法,但仍在努力弥合高收入国家和低收入国家之间的免疫接种差距.

研究的目的:

  • 分析COVAX设施在实现公平的全球疫苗分配方面的缺陷.
  • 确定限制COVAX有效性的关键限制因素.
  • 建议对COVAX进行转型,以加强其对全球免疫接种的影响.

主要方法:

  • 对COVAX机制的结构和实施的政策分析.
  • 对参与自筹资的国家的激励机制的审查.
  • 评估疫苗分配策略,考虑政治和道德因素.
  • 评估融资和执法能力.

主要成果:

  • 由于国家自筹资的激励措施不足,COVAX面临着挑战.
  • 疫苗分配机制没有充分纳入国家政治考虑或医学伦理.
  • 缺乏独立的融资和全球执法权力限制了COVAX的有效性.
关键词:
在科瓦克斯的设施中.这是COVID-19疫苗.公平的访问权限 公平的访问权限疫苗接种缺口是一个问题.

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  • 高收入国家和低收入国家之间的"免疫差距"仍然存在.
  • 结论:

    • 目前COVAX的结构限制了其确保公平接种疫苗的能力.
    • 将COVAX改革为疫苗供应,需求,知识传播和援助请求的信息中心可以加速进展.
    • 加强融资和执法机制对于未来的全球卫生倡议至关重要.