Preliminary analyses of scRNA sequencing and immunohistochemistry of children's lung tissues indicate the expression of SARS‐CoV‐2 entry‐related genes may not be the key reason for the milder syndromes of COVID‐19 in children. Issue 5 (21st May 2021) - Tao, Yue; Yang, Ruwen; Wen, Chen; Fan, Jue; Ma, Jing; He, Qiao; Zhao, Zhiguang; Song, Xinyu; Chen, Hao; Shi, Guocheng; Yin, Minzhi; Fang, Nan; et al.