摘要新型冠状病毒(2019 novel coronavirus，2019-nCoV)感染疫情是国际关注的突发公共卫生事件之一。自新冠疫情发生以来，我国一直采取严格的防控措施，并取得了令全世界瞩目的阶段性防控成果，但仍有境外输入病例及区域性散发病例被发现，甚至发生短时区域性流行，显示疫情防控形势仍然严峻。随着18岁以下儿童发病比例和病例数量的变化，儿童患者出现了一些新的特殊症候和并发症，加之随着病毒变异的发生，不仅备受各方关注和高度重视，而且也为我国儿童2019-nCoV感染的防治提出了新的课题。本共识在《儿童新型冠状病毒感染诊断、治疗和预防专家共识(第二版)》的基础上，总结儿童病例临床疾病特点和诊疗经验，就儿童病例诊断标准、实验室检查、治疗和防控等提出建议，为进一步指导儿童2019-nCoV感染的救治工作提供参考。

abstracts2019 novel coronavirus(2019-nCoV) outbreak is one of the public health emergency of international concern.Since the 2019-nCoV outbreak, China has been adopting strict prevention and control measures, and has achieved remarkable results in the initial stage of prevention and control.However, some imported cases and sporadic regional cases have been found, and even short-term regional epidemics have occurred, indicating that the preventing and control against the epidemic remains grim.With the change of the incidence proportion and the number of cases in children under 18 years old, some new special symptoms and complications have appeared in children patients.In addition, with the occurrence of virus mutation, it has not only attracted attention from all parties, but also proposed a new topic for the prevention and treatment of 2019-nCoV infection in children of China.Based on the second edition, the present consensus further summarizes the clinical characteristics and experience of children′s cases, and puts forward recommendations on the diagnostic criteria, laboratory examination, treatment, prevention and control of children′s cases for providing reference for further guidance of treatment of 2019-nCoV infection in children.