New in Vitro Study Confirms Spike Protein “Shedding”

11/21/2025 A new in vitro study (using human cells in a laboratory) of Pfizer's mRNA COVID-19 vaccine confirms that, after taking up the mRNA, cells produce spike proteins and secrete them into the environment via exosomes—essentially shedding them.
#mRNAVaccine #SpikeProtein #Exosomes #Shedding #Pfizer #COVIDVaccine #Spikeproteinshedding
11/21/2025 一项针对辉瑞mRNA新冠疫苗的新体外研究（在实验室中使用人类细胞）证实，细胞摄取mRNA后产生刺突蛋白，并通过外泌体将刺突蛋白向环境中分泌，也就是“脱落”。
#mRNA疫苗 #刺突蛋白 #外泌体 #脱落 #辉瑞 #新冠疫苗 #刺突蛋白脱落