n comparison, here's what the data shows for individuals under the age of 18 in the U.S. since the start of the pandemic:
544 children have died from COVID 682,646 people have died overall from COVID Nationally, childrens' deaths account for .079% of all COVID deaths 434 children died from the flu last season 21,909 people died overall from the flu Nationally, children's deaths made up 1.9% of national flu deaths
青少年免疫功能强，疫苗保护率竟然达到惊人的100%。见：
https://thehill.com/policy/healthcare/582667-pfizer-vaccine-is-100-percent-effective-in-adolescents
如果免疫功能低下 （年老，体弱，器官移植病人等），突破感染的机会就会增加。
打疫苗并不是每个人发一件同样的防弹背心。疫苗可以是相同的， 每个人产生的抵抗力是不同的。每个人应该根据自身的情况选择最合理的保护措施。
人的“设计年龄”也就是四，五十岁。现在老人多，估计80%是现代医学和现代生活的功劳。
年轻人打疫苗，是锦上添花。（都是锦，但更加艳丽了）
年老体弱的打疫苗，是雪中送炭。（有了炭，解决了大问题，但还是感觉有点冷）
对于重症和死亡率极其低的年轻人来说，在长期副作用未明的情况下，what's the risk benefit analysis? 不能因为要治驼背，结果把人踩死了啊。
两害相权取其轻。
n comparison, here's what the data shows for individuals under the age of 18 in the U.S. since the start of the pandemic:
544 children have died from COVID 682,646 people have died overall from COVID Nationally, childrens' deaths account for .079% of all COVID deaths 434 children died from the flu last season 21,909 people died overall from the flu Nationally, children's deaths made up 1.9% of national flu deathshttps://www.11alive.com/article/news/verify/are-children-dying-from-covid-at-a-lesser-rate-than-the-flu/85-307ce0af-fdfd-477f-b24e-323510b33370