However, the small number of outbreaks reported among teaching or associated staff to date suggests that spread of COVID-19 within educational settings may be limited.
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由于儿童通常病情较轻，症状较少，病例有时可能被忽视。
As children generally have milder illness and fewer symptoms, cases may sometimes go unnoticed.
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重要的是，早期研究数据表明，青少年感染率可能高于幼儿。
Importantly, early data from studies suggest that infection rates among teenagers may be higher than in younger children.
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考虑到许多国家正开始慢慢取消对活动的限制，保持学校开放对社区传播的长期影响还有待评估。
Considering that many countries are starting to slowly lift restrictions on activities, the longer-term effects of keeping schools open on community transmission are yet to be evaluated.
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一些建模研究表明，学校重新开放可能对社区中更广泛的传播有较小影响，但这方面认识还不是很深入。
Some modelling studies suggest that school re-opening might have a small effect on wider transmission in the community, but this is not well understood.
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目前正在进一步研究儿童在教育环境内外传播中的作用。
Further studies are underway on the role of children in transmission in and outside of educational settings.
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世卫组织正与世界各地科学家合作拟定研究方案，供各国用于研究COVID-19在教育机构中的传播情况。
WHO is collaborating with scientists around the world to develop protocols that countries can use to study COVID-19 transmission in educational institutions.
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不久将通过此 链接提供该研究方案。
Click here to accessthis information .
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有基础病症（癌症、糖尿病、肥胖症）的儿童是否应该返回学校？
Should children with underlying health conditions (asthma, diabetes, obesity) return to school?
Whether a child should go to school depends on their health condition, the current transmission of COVID-19 within their community, and the protective measures the school and community have in place to reduce the risk of COVID-19 transmission.