Treatment with PJ34 increased the expression of Dicer, XPO5, SRSF3, and hnRNPA3 in SARS-CoV-2-infected lung tissues and ameliorated the pneumonia induced by ectopic N protein expression and SARS-CoV-2 infection (Fig. 9e–g). The gene discussed is DICER1; the disease is susceptibility to pneumonia measurement.