相关实验视频
Updated: Jul 11, 2025

08:52
Evaluation of Host-Pathogen Responses and Vaccine Efficacy in Mice
Published on: February 22, 2019
10.7K
上一篇:中高中学生的COVID-19疫苗接种感染和有效性
Olivia M Almendares1, Jasmine D Ruffin1, Abigail H Collingwood2
1COVID-19 Response Team.
Pediatrics
|November 14, 2023
概括
从先前感染和最近接种疫苗的混合免疫力,特别是第三剂,在青少年中提供了对SARS-CoV-2感染的最强有力的保护. 这项以学校为基础的研究强调了疫苗接种.
科学领域:
- 儿童传染病 儿童传染病
- 流行病学 流行病学
- 免疫学 免疫学 免疫学
背景情况:
- 评估SARS-CoV-2缓解策略的实际有效性,包括在儿童和青少年群体环境中接种疫苗,至关重要.
- 学校测试为评估预防感染提供了有价值的数据.
研究的目的:
- 为了评估之前的SARS-CoV-2感染和2019年新冠病毒病 (COVID-19) 疫苗接种对中高中学生的SARS-CoV-2感染的保护作用.
- 为了比较单次感染,单次疫苗接种和混合免疫力在Omicron (BA.1) 变异激增期间对感染的有效性.
主要方法:
- 利用了2022年1月犹他州中高中学生的全校抗原测试数据.
- 采用日志双项回归模型来估计先前感染和疫苗接种状态所赋予的保护.
- 分析了17910名学生的数据,考虑了年龄组 (12-15岁和16-19岁) 和疫苗接种史.
主要成果:
- 以前的SARS-CoV-2感染单独在年轻和年长的青少年中分别提供了35.9%和23.8%的保护.
- 两剂混合免疫 (感染+接种疫苗) 在年轻和年长的青少年中分别提供58.7%和54.7%的保护.
- 三剂混合免疫证明了最高的保护率为70.0%,尽管置信区间与两剂混合免疫重叠.
结论:
- 混合免疫,将以前的感染与最近的疫苗接种 (特别是第三剂) 结合起来,在青少年中提供了对SARS-CoV-2感染的最强的保护.
- 这些发现强调了疫苗接种的重要性,包括强剂,以保持在学校环境中的保护.
相关概念视频
Vaccinations
44.6K
Overview
44.6K
Immunological Memory
630
Immunological memory, a pivotal pillar of the adaptive immune system, is responsible for the body's ability to remember and respond more swiftly and effectively to previously encountered pathogens. This remarkable feature is what makes vaccines so effective in preventing diseases.
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature...
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature...
630
Factors Affecting the Risk of Infection
11.9K
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...
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...
11.9K
Cross-reactivity
31.2K
Overview
31.2K
Active versus Passive Immunity
660
Immunity, along with the ability to limit pathogen growth to prevent significant body tissue damage, can be gained either by (1) actively developing an immune response within the individual after exposure to a pathogen or after getting vaccinated or (2) passively transferring immune components from an immune individual to one who is nonimmune. Both these forms of immunity can be found naturally and in medical practices.
Active Immunity
Active immunity refers to the resistance one develops...
Active Immunity
Active immunity refers to the resistance one develops...
660

