Transplant(9) SARS-CoV-2(9) acute respiratory syndrome(7) Infection(7) pediatric(7) liver(5) Immunosuppression(5) Patient(5) recipient(5) Inflammatory(4) European(4) children(4) disease(4) experience(4) Coronavirus-2(4) proportion(3) Frequency(3) center(3) coronavirus(3) positive(3) bowel(3) PCR(3) tested(3) Mild(3) was obtained(3) solid organ transplant(3) recipients(3) Record(3) SARS-COV-2 infection(3) rejection(3)