{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,6]],"date-time":"2026-07-06T23:40:01Z","timestamp":1783381201863,"version":"3.54.6"},"reference-count":39,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2024,2,26]],"date-time":"2024-02-26T00:00:00Z","timestamp":1708905600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontierspartnerships.org"],"crossmark-restriction":true},"short-container-title":["Transpl Int"],"abstract":"<jats:p>Late opportunistic infections (OI) occurring beyond the first year after kidney transplantation (KT) are poorly described and not targeted by prophylactic strategies. We performed a ten-year retrospective monocentric cohort study describing epidemiology, risk factors and impact of late OI occurring 1\u00a0year after KT. We included clinically symptomatic OI requiring treatment besides BK virus nephropathy. Control groups included early OI occurring in the first year after KT, and KT recipients without OI since KT and alive with a functional allograft at 1\u00a0year. Among 1066\u00a0KT recipients, 185 (19.4%) presented a first episode of OI 21.0 (8.0\u201345.0) months after KT: 120 late OI (64.9%) and 65 early OI (35.1%). Late OI were mainly viral (<jats:italic>N<\/jats:italic> = 83, 69.2%), mostly herpes zoster (HZ) (<jats:italic>N<\/jats:italic> = 36, 43.4%). Pneumocystis represented most late fungal infections (<jats:italic>N<\/jats:italic> = 12\/25, 48%). Compared to early OI, we reported more pneumocystis (<jats:italic>p<\/jats:italic> = 0.002) and less invasive aspergillosis (<jats:italic>p<\/jats:italic> = 0.01) among late OI. Patients with late OI were significatively younger at KT (54.0 \u00b1 13.3 vs. 60.2 \u00b1 14.3\u00a0years, <jats:italic>p<\/jats:italic> = 0.05). Patient and allograft survival rates between late OI and control groups were similar. Only age was independently associated with mortality. While late OI were not associated with higher mortality or graft loss, implementing prophylactic strategies might prevent such infections.<\/jats:p>","DOI":"10.3389\/ti.2024.12065","type":"journal-article","created":{"date-parts":[[2024,2,26]],"date-time":"2024-02-26T12:27:39Z","timestamp":1708950459000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":6,"title":["Beyond the First Year: Epidemiology and Management of Late-Onset Opportunistic Infections After Kidney 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