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Emerging at the end of 2019, coronavirus disease 2019 (COVID-19) has become a public health threat to people all over the world. The lower airway is the primary target of the infection for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Pneumonia is always present in patients with severe COVID-19. 1, 2 Available reports to date show that COVID-19 seems to be uncommon in children. 3e6 Recent data reported from the Chinese Centers for Diseases Control and Prevention indicated that among the 44,672 confirmed cases of COVID-19 as of February 11, 2020, 416 (0.9%) were aged 0e10 years and 549 (1.2%) aged 10e19 years. 7 Exploring the underlying reasons may help understand the pathogenesis of COVID-19. One possible reason is that children have fewer outdoor activities and undertake less international travel, making them less likely to contract the virus. The number of pediatric …