Jing Jing Y Y Luo Luo L L Chen Chen Y Y SARS-CoV-2 infection causes immunodeficiency in recovered patients by downregulating CD19 expression in B cells via enhancing B-cell metabolism SARS-CoV-2 infection causes immunodeficiency in recovered patients by downregulating CD19 expression in B cells via enhancing B-cell metabolism Signal Transduct Target Ther Signal Transduct Target Ther 2021 2021 6 6 1 1 345 345 10.1038/s41392-021-00749-3 10.1038/s41392-021-00749-3 supplied-pmid 34552055? This evidence concerns the gene CD19 and immune system disorder.