[Extra Credit - B] / Kim Seoyoung(김서영)
1) What was surprising or interesting in the video? The most interesting thing about this video is the presence and role of memory cells. Memory cells remain in our body for many years and are asleep, but if the same disease attacks us again, the sleeping memory cells are instructed to wake up and make antibodies. This ensures that the disease that has been once infected will never be caught again. Through these contents, we learned how well our body's immune system works. Not only does it simply defend against diseases, but it also remembers and responds quickly to past infections. Furthermore, understanding this video through the fact that these natural mechanisms are applied when making vaccines provides important information for our health and medical development. 2) What is the main topic of the video, and what do you think about it? The main theme of the video is the basic principles of vaccines and the defense of risks from side effects. Most people, not only me, are ...