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BACKGROUND: Cytomegalovirus (CMV) is an important opportunistic pathogen after transplantation. Some virological variation in transplant recipients is explained by donor and recipient CMV serostatus, but not all. Circadian variability of herpesviruses has been described, so we investigated the effect of time of day of transplantation on posttransplant CMV viremia. METHODS: We performed a retrospective analysis of 1517 patients receiving liver or kidney allografts at a single center from 2002 to 2018. All patients were given preemptive therapy with CMV viremia monitoring after transplantation. Circulatory arrest and reperfusion time of donor organ were categorized into 4 periods. Patients were divided into serostatus groups based on previous CMV infection in donor and recipient. CMV viremia parameters were compared between time categories for each group. Factor analysis of mixed data was used to interrogate this complex data set. RESULTS: Live-donor transplant recipients were less likely to develop viremia than recipients of deceased-donor organs (48% vs 61%; P 

Original publication




Journal article


J Infect Dis

Publication Date





357 - 365


Cytomegalovirus, circadian rhythm, monitoring, preemptive, prophylaxis, solid organ transplantation, Antiviral Agents, Circadian Rhythm, Cytomegalovirus, Cytomegalovirus Infections, Humans, Organ Transplantation, Retrospective Studies, Viral Load, Viremia