什么是脂质纳米颗粒？
辉瑞 Covid-19 疫苗使用称为脂质纳米颗粒的微小颗粒将疫苗的遗传物质（称为信使 RNA 或 mRNA）传递到体内细胞中。这些脂质纳米颗粒就像由脂肪和其他分子组成的微小“气泡”，可以包围和保护 mRNA，直到它到达细胞内的目的地。
...此外，欧洲药品管理局发布的辉瑞Covid-19疫苗评估报告证实，辉瑞Covid-19疫苗中的两种脂质是ALC-0159和ALC-315。
...但这两种脂质都带有制造商的警告，声明它们永远不能用于人类或动物。

What are Lipid Nanoparticles?
The Pfizer Covid-19 vaccine uses tiny particles called lipid nanoparticles to deliver the vaccine’s genetic material (called messenger RNA, or mRNA) into cells in the body. These lipid nanoparticles are like tiny “bubbles” made up of fats and other molecules that can surround and protect the mRNA until it reaches its destination inside the cells.
...Furthermore, it has been discovered that two of the lipids in Pfizer Covid-19 vaccines are ALC-0159 and ALC-315, as confirmed by the assessment report of the Pfizer Covid-19 vaccine published by the European Medicines Agency.
...But both of these lipids carry manufacturer’s warnings that state they are never to be used in humans or animals.