COVID-19(40) SARS-CoV-2(34) Transplant(33) recipient(31) Patient(29) Kidney transplantation(27) kidney(24) response(21) positive(19) vaccination(18) Immunosuppression(15) recipients(15) Infection(14) Diagnosis(14) coronavirus(13) patients(12) death(12) Treatment(12) kidney transplant recipient(11) antibody(11) dose(11) BNT162b2(11) SARS-COV-2 infection(11) evaluated(11) analyzed(10) vaccination.(10) incidence(10) Administered(10) Humoral response(9) reduced(9)