So far, data suggests that children under the age of 18 years represent about 8.5% of reported cases, with relatively few deaths compared to other age groups and usually mild disease.
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不过，也报告过危重病例。
However, cases of critical illness have been reported.
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与成人一样，基础医学病症是儿童患重症和接受重症监护的风险因素。
As with adults, pre-existing medical conditions have been suggested as a risk factor for severe disease and intensive care admission in children.
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目前正在开展进一步研究，以评估儿童感染的风险，并更好地了解这一年龄组的传播情况。
Further studies are underway to assess the risk of infection in children and to better understand transmission in this age group.
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儿童在传播中的作用是什么？
What is the role of children in transmission?
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关于儿童在传播中的作用尚无充分认识。
The role of children in transmission is not yet fully understood.
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迄今为止，涉及儿童或学校的疫情报告寥寥无几。
To date, few outbreaks involving children or schools have been reported.