토익 듣기 훈련1 21.12.31.금 What Are mRNA Vaccines and How Do They Work? mRNA 백신이란 무엇이며 작용 원리는 어떻게 되는가? [귀트영] Vaccines help the body fight bacteria or viruses. They also help to prevent infection. They do this by triggering an immune response. Most vaccines contain a weakened or dead bacteria or virus. However, newer vaccines use something called messenger RNA, or mRNA for short. This mRNA is used instead of an actual bacteria or virus. In a normal immune response, the body recognizes illness and produc.. 2021. 12. 31. 이전 1 다음 반응형
