Covid-19 variants may be less dangerous to vaccinated people and recovered patients than previously thought, according to researchers who found that the human body produces a strong cellular immune response to some of the most worrying new strains.
研究人員稱,對已經接種疫苗者和已經康復的患者來說,新型冠狀病毒肺炎(COVID-19,即2019冠狀病毒病)變種的危險性可能低於預想。他們發現,人體會對某些最令人擔憂的新病毒株產生強大的細胞免疫反應。
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