We evaluate the usefulness of a newly-developed T cell-based assay prior to undergoing immunosuppression in renal transplant recipients. Among all renal transplant recipients, patients with negative tuberculin skin test and no other indications for latent tuberculosis infection will be enrolled in this study. We will exam T-SPOT.TB test in these patients, and observe the developement of tuberculosis within 1 to 2 years after the transplantation. The results of T-SPOT.TB will be blinded to the investigators.
The aim of this study is to estimate the usefulness of a T cell-based assay (i.e. T-SPOT.TB assay) for diagnosis of latent tuberculosis infection (LTBI) in renal transplant recipients. For this purpose, the investigators enrolled renal transplant recipients and observed the developement of tuberculosis within 1 to 2 years after the transplantation.