Time is like running water, and the dead are like husbands. In a flash, 2020 is nearly halfway through. In daily work and life, the impact of the novel coronavirus epidemic is gradually subsiding, and this battle that lasted for nearly five months is about to come to an end. After this issue, the manuscripts related to novel coronavirus (COVID-19) in this journal will no longer be published in another column, and the subsequent relevant reports will be included in the regular manuscript column. Readers are welcome to continue to pay attention to the outcome and reflection of the disease.