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事实检查：特朗普错误地声称孩子没有向教师传播病毒
特朗普的主张：“我想开放学校。对老师的传递率很小。”
事实核对：疾病控制与预防中心更新了其指南，以指出“越来越多的证据表明，孩子“可能在传播中发挥了作用”。仍然，儿童在社区传播中扮演的角色尚未完全了解。
CDC在最近的一项研究中发现传播途径尚不清楚：“最近的证据表明，儿童的鼻咽病毒载量可能与成人相同或更高，并且儿童可以在家庭和营地有效传播病毒。”
尚未对学校进行深入研究，因为许多学校仍处于关闭状态，而且并非每所学校都在报告疫情。一个令人担心的问题是，儿童可能没有表现出症状就传播了病毒，而对没有症状的人进行测试仍然受到限制。
总体而言，官员们说，社区的传播水平越低，学校传播这种病毒的可能性就越小。
Fact check: Trump falsely claims that kids aren't transmitting virus to teachers
TRUMP'S CLAIM: "I want to open the schools. The transmittal rate to the teachers is very small."
FACT CHECK: The Centers for Disease Control and Prevention has updated its guidance to note a "body of evidence is growing" that kids "might play a role in transmission." Still, the role children play in community transmission is not yet fully understood.
In one recent study, the CDC found transmission is unclear: "Recent evidence suggests that children likely have the same or higher viral loads in their nasopharynx compared with adults and that children can spread the virus effectively in households and camp settings."
Schools haven't been studied as closely because many remain closed and not every school is reporting outbreaks. One concern is that children might be transmitting the virus without exhibiting symptoms, and testing people without symptoms remains limited.
Overall, officials say the lower transmission levels in a community, the less likely schools will spread the virus.
