韩国最新超大size的研究，推翻了西方小范围的研究。最新研究表明：十岁以下小孩传播别人的概率也许较小，超过十岁不比成人弱！ https://www.chicagotribune.com/coronavirus/ct-nw-nyt-older-children-covid-spread-study-20200718-5q5eo4ylibcwppd2haxwvdp6re-story.html?outputType=amp A large new study from South Korea offers an answer: Children younger than age 10 transmit to others much less often than adults do, but the risk is not zero. And those between the ages of 10-19 can spread the virus at least as well as adults do. Several studies from Europe and Asia have suggested that young children are less likely to get infected and to spread the virus. But most of those studies were small and flawed, said Dr. Ashish Jha, director of the Harvard Global Health Institute. The new study “is very carefully done, it’s systematic and looks at a very large population,” Jha said. “It’s one of the best studies we’ve had to date on this issue.” 我们家一个小学娃，一个初中娃。本来的计划是小学娃在家学习，因为怕不懂卫生；初中娃大了，让他回去。现在看来，俩娃都不能回去了
A large new study from South Korea offers an answer: Children younger than age 10 transmit to others much less often than adults do, but the risk is not zero. And those between the ages of 10-19 can spread the virus at least as well as adults do.
Several studies from Europe and Asia have suggested that young children are less likely to get infected and to spread the virus. But most of those studies were small and flawed, said Dr. Ashish Jha, director of the Harvard Global Health Institute. The new study “is very carefully done, it’s systematic and looks at a very large population,” Jha said. “It’s one of the best studies we’ve had to date on this issue.”
我们家一个小学娃，一个初中娃。本来的计划是小学娃在家学习，因为怕不懂卫生；初中娃大了，让他回去。现在看来，俩娃都不能回去了
即便如此，老师也还是可以传染给小孩啊。
我们脑残学区准备小学以年级为单位一起吃饭一起recess.
老师可以要求戴口罩，讲课的时候离小朋友一定距离。作业都数字化批改，不碰小朋友物品。这样应该很大程度上减少风险
小学的包括kindergarten。kindergarten 还低的应该是父母的事情吧。
学校提供口罩，洗手消毒杀菌的东西。要求学生老师follow travel 的policies。 去学校之前要求报告体温。我们这儿guidance 就写了1000多页😄😄😄
我们学区就是计划小学hybrid, 初高中都DL。年龄小的孩子上网课效果太差，最需要social。初高中主要问题是学生太多，hybrid 得分三四组才能保持social distance,老师不够没法实行，
大孩子和年轻人没太大区别...
大家都戴好口罩，应该有用。