In the new era of prevention and control of COVID-19，the characteristics of pediatric pneumonia have undergone some changes，such as the diversity and complexity of pathogens，and alteration in clinical characteristics，etc. Besides，much attention should be paid to respiratory virus-associated sepsis，obstructive respiratory failure caused by mucus hypersecretion after infection，and severe pneumonia complicated with pulmonary embolism. It is also necessary to strengthen the illness evaluation and early warning of severe pneumonia in children，and accelerate the application of artificial intelligence in the diagnosis and treatment of severe pneumonia. Clinicians should pay special attention to these issues in order to achieve better diagnosis，treatment，and prevention of severe pneumonia in children.

child, severe pneumonia, issues

新型冠状病毒感染疫情防控新阶段，儿童肺炎的特点发生了一些变化，如病原体的多样性和复杂性，临床特点的改变等。另外，需关注呼吸道病毒相关性脓毒症，重视感染后黏液高分泌导致的阻塞性呼吸衰竭，警惕重症肺炎并发肺栓塞。还应加强对儿童重症肺炎的病情评估及早期预警，加强人工智能在重症肺炎诊治中的应用等。临床医生要重视以上问题，以实现对儿童重症肺炎更好的诊疗和防控。

儿童, 重症肺炎, 问题