{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T05:00:34Z","timestamp":1787029234809,"version":"build-2736575974"},"reference-count":67,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2026,4,5]],"date-time":"2026-04-05T00:00:00Z","timestamp":1775347200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100006472","name":"Grigore T. Popa University of Medicine and Pharmacy Iasi","doi-asserted-by":"publisher","award":["13538\/28.06.2024"],"award-info":[{"award-number":["13538\/28.06.2024"]}],"id":[{"id":"10.13039\/501100006472","id-type":"DOI","asserted-by":"publisher"}]},{"award":["13538\/28.06.2024"],"award-info":[{"award-number":["13538\/28.06.2024"]}],"id":[{"id":"https:\/\/ror.org\/03hd30t45","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pathogens"],"abstract":"<jats:p>Kidney transplant recipients (KTRs) remain vulnerable to infectious complications and malignancies due to chronic immunosuppression, both of which may contribute to allograft dysfunction and adverse clinical outcomes. This study aimed to evaluate the prevalence of viral infections and post-transplant malignancies among hospitalized KTRs and to identify factors associated with acute kidney injury (AKI) and chronic graft dysfunction. We conducted a prospective observational study including 215 adult KTRs admitted to a tertiary transplant center over a one-year period. Clinical data, malignancy history, and viral detection for BK polyomavirus (BKV), cytomegalovirus (CMV), Epstein\u2013Barr virus (EBV), and parvovirus B19 were analyzed. AKI occurred in 65.6% of patients, while chronic graft dysfunction was present in 21.4%. Viral positivity was detected in 16.7% of the cohort, most frequently BKV and CMV. Infectious etiologies represented the most common cause of AKI. Viral positivity was significantly associated with infectious mechanisms of AKI and was independently associated with AKI in multivariable analysis (adjusted OR 3.01, p = 0.02). In a separate multivariable model, malignancy history (aOR 9.30), viral positivity (aOR 3.33), and concurrent AKI (aOR 3.42) were independently associated with chronic graft dysfunction. These findings suggest that viral reactivation and malignancy history cluster with clinical states of increased graft vulnerability in hospitalized KTRs. Integrated evaluation of infectious, immunologic, and clinical factors may improve risk stratification and management of transplant recipients presenting with acute illness.<\/jats:p>","DOI":"10.3390\/pathogens15040390","type":"journal-article","created":{"date-parts":[[2026,4,6]],"date-time":"2026-04-06T03:11:28Z","timestamp":1775445088000},"page":"390","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Kidney Transplant Recipients: Viral Infections and Malignancies"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1510-3398","authenticated-orcid":false,"given":"Costin","family":"Damian","sequence":"first","affiliation":[{"name":"Grigore T. Popa University of Medicine and Pharmacy Iasi, 700115 Ia\u0219i, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9985-2486","authenticated-orcid":false,"given":"Adrian Constantin","family":"Covic","sequence":"additional","affiliation":[{"name":"Grigore T. Popa University of Medicine and Pharmacy Iasi, 700115 Ia\u0219i, Romania"},{"name":"Nephrology Clinic, Dialysis and Renal Transplant Center, C. I. Parhon University Hospital, 700503 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1811-7923","authenticated-orcid":false,"given":"Ramona Gabriela","family":"Ursu","sequence":"additional","affiliation":[{"name":"Grigore T. Popa University of Medicine and Pharmacy Iasi, 700115 Ia\u0219i, Romania"},{"name":"\u201cCuza-Vod\u0103\u201d Clinical Hospital of Obstetrics and Gynecology, 700038 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aida Corina","family":"Badescu","sequence":"additional","affiliation":[{"name":"Grigore T. Popa University of Medicine and Pharmacy Iasi, 700115 Ia\u0219i, Romania"},{"name":"Clinical Hospital of Infectious Diseases \u201cSf. Parascheva\u201d, 700116 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simona Mihaela","family":"Hogas","sequence":"additional","affiliation":[{"name":"Grigore T. Popa University of Medicine and Pharmacy Iasi, 700115 Ia\u0219i, Romania"},{"name":"Nephrology Clinic, Dialysis and Renal Transplant Center, C. I. Parhon University Hospital, 700503 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andreea Simona","family":"Covic","sequence":"additional","affiliation":[{"name":"Grigore T. Popa University of Medicine and Pharmacy Iasi, 700115 Ia\u0219i, Romania"},{"name":"Nephrology Clinic, Dialysis and Renal Transplant Center, C. I. Parhon University Hospital, 700503 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mihai","family":"Isache","sequence":"additional","affiliation":[{"name":"Nephrology Clinic, Dialysis and Renal Transplant Center, C. I. Parhon University Hospital, 700503 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-5420-9608","authenticated-orcid":false,"given":"Silvia Gabriela","family":"Ionescu","sequence":"additional","affiliation":[{"name":"Grigore T. Popa University of Medicine and Pharmacy Iasi, 700115 Ia\u0219i, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Corneliu","family":"Morosanu","sequence":"additional","affiliation":[{"name":"Grigore T. Popa University of Medicine and Pharmacy Iasi, 700115 Ia\u0219i, Romania"},{"name":"Nephrology Clinic, Dialysis and Renal Transplant Center, C. I. Parhon University Hospital, 700503 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefania Brindusa","family":"Copacianu","sequence":"additional","affiliation":[{"name":"Microbiology Laboratory, Regional Institute of Oncology, 700483 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2592-3982","authenticated-orcid":false,"given":"Luminita-Smaranda","family":"Iancu","sequence":"additional","affiliation":[{"name":"Grigore T. Popa University of Medicine and Pharmacy Iasi, 700115 Ia\u0219i, Romania"},{"name":"National Institute of Public Health, Iasi Regional Center for Public Health, 700465 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,4,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2824","DOI":"10.1111\/ajt.16463","article-title":"Long-Term Kidney Transplant Graft Survival-Making Progress When Most Needed","volume":"21","author":"Poggio","year":"2021","journal-title":"Am. J. 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