通过疫苗接种和自然感染,印度对COVID-19的免疫反应
Tresa Rani Sarraf1, Shreyasi Maity1, Arjun Ghosh2
1CSIR-Indian Institute of Chemical Biology, 4 Raja Subodh Chandra Mullick Road, Kolkata 700032.
这项研究比较了印度的COVID-19疫苗 (Covishield,Covaxin) 和自然感染免疫力. 这两种疫苗都提供了类似的细胞介导免疫力,而自然感染则提供了相似且持续时间更长的免疫反应.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 公共卫生 公共卫生
背景情况:
- 尽管有疫苗接种工作,但COVID-19仍然是印度的一个问题.
- 疫苗对自然感染的比较免疫保护没有得到充分的证据.
- 了解免疫反应对于管理正在进行的流行病至关重要.
研究的目的:
- 评估由Covishield和Covaxin诱导的幽默和细胞介导免疫反应.
- 为了比较疫苗诱导的免疫力与自然SARS-CoV-2感染的免疫力.
- 评估感染后免疫反应的持续时间.
主要方法:
- 来自印度加尔各答的个人对幽默和细胞介导免疫反应的分析.
- 在Covishield和Covaxin接种者之间对免疫反应的比较.
- 评估自然COVID-19感染后的免疫反应.
主要成果:
- 科维希尔德诱导的幽默免疫反应比Covaxin更强.
- 这两种疫苗都表现出类似的细胞介导免疫反应.
- 疫苗和自然感染诱导了类似的整体免疫反应.
- 对自然感染的细胞介导免疫力在某些个体中持续至少10个月.
- 这两种疫苗对野生型的SARS-CoV-2比Delta变种更有效.
结论:
- 科维希尔德和Covaxin引起了与SARS-CoV-2相比的细胞介导免疫力.
- 自然感染提供了与疫苗接种相似的大小和持续时间的免疫反应.
- 免疫反应的持续时间和对变异的有效性需要进一步调查.
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