Immunological memory occurs after a primary immune response against the antigen. Immunological memory is thus created by each individual, after a previous initial exposure, to a potentially dangerous agent. The course of secondary immune response is similar to primary immune response. After the memory B cell recognizes the antigen it presents the peptide: MHC I complex to nearby effector T cells. That leads to activation of these cells and rapid proliferation of cells. After the primary immune response has disappeared, the effector cells of the immune response are eliminated.[5] However, there remain antibodies previously created in the body that represent the humoral component of immunological memory and comprise an important defensive mechanism in subsequent infections. In addition to the formed antibodies in the body there remains a small number of memory T and B cells that make up the cellular component of the immunological memory. They stay in blood circulation in a resting state and at the subsequent encounter with the same antigen these cells are able to respond immediately and eliminate the antigen. Memory cells have a long life and last up to several decades in the body.
在大众眼里，疫苗应该是防感染的。一开始大家也以为新冠疫苗是能防感染的 （尽管回头看看不见得是那回事）那积极推进就有意义。等到了发现疫苗不防感染只防重症，那抗疫就是完全失败了。防重症只对个人有意义，对于国家乃至世界纯属安慰剂。病人得了还会再得，迟早会过不了这一关。这个时候，推进疫苗纯属政治，根本于事无补，让大家自愿接种就行了。
没有你说的“只防重症”。
其一，中症，不是重症。
其二，验证的是中症，不是“只防”重点字：只。（没有验证，不等于验证了无效）
看完后如果你还说疫苗是成功的，我就无话可说了。
Immunological memory occurs after a primary immune response against the antigen. Immunological memory is thus created by each individual, after a previous initial exposure, to a potentially dangerous agent. The course of secondary immune response is similar to primary immune response. After the memory B cell recognizes the antigen it presents the peptide: MHC I complex to nearby effector T cells. That leads to activation of these cells and rapid proliferation of cells. After the primary immune response has disappeared, the effector cells of the immune response are eliminated.[5] However, there remain antibodies previously created in the body that represent the humoral component of immunological memory and comprise an important defensive mechanism in subsequent infections. In addition to the formed antibodies in the body there remains a small number of memory T and B cells that make up the cellular component of the immunological memory. They stay in blood circulation in a resting state and at the subsequent encounter with the same antigen these cells are able to respond immediately and eliminate the antigen. Memory cells have a long life and last up to several decades in the body.
https://blog.wenxuecity.com/myblog/73054/202201/20292.html
https://mp.weixin.qq.com/s/MsBoTMOxQX9sCWFKP1pT6g
在个人和"国家"之间， 还有个医疗系统。重症患者的减少， 能让医护人员不至于疲于奔命损害他们的免疫力， 维持医疗系统运作。
家里有儿女做医生的， 这几年感觉跟你不一样。
天天在这里泡着， 几句话翻来倒去，，，
要是生活周边真遇这等眼高手低，自己不做事，只会唧唧歪歪吹毛求疵的，很简单，对不起，远离。
说数据，常见坛里搬来这国那国报道数据和结论，并没见统计背景细节，我仅大体瞟眼很少评论，知道为什么吗？
“发现疫苗不防感染只防重症，那抗疫就是完全失败了。防重症只对个人有意义，对于国家乃至世界纯属安慰剂”