@article {4073, title = {Persistent infection of hepatitis E virus transmitted by blood transfusion in a patient with T-cell lymphoma.}, journal = {//Hepatol. res.}, volume = {37}, year = {2007}, month = {2007}, pages = {113 - 120}, publisher = {(1)Division of Gastroenterology and Hepatology, Advanced Medical Research Center, Nihon University School of Medicine, Itabashi-ku, Tokyo, Japan(2)Department of Immunology and Microbiology, Advanced Medical Research Center, Nihon University School of Medi}, address = {Copyright (C) 2007 Blackwell Publishing Ltd.}, abstract = {Aim: With advent of reverse-transcription (RT)/polymerase chain reaction (PCR) for detection of the hepatitis E viral genome, we carried out retrospective examinations., Methods: Serum samples collected from 68 patients diagnosed as viral hepatitis with unknown etiology were tested for viral markers of hepatitis virus., Results: Two of them were found positive for hepatitis E viral RNA. While the clinical course of one patient (patient 1) was typical as acute hepatitis E, another patient (patient 2) was persistently infected with HEV. Patient 2 was infected with the virus via blood transfusion during chemotherapy against T-cell lymphoma. The entire viral genome from the donor was identical with that from the serum of patient 2 obtained on day 170 after the transfusion of the implicated red blood cell (RBC) product, confirming the transmission of HEV by transfusion. The patient remained negative for anti-HEV antibodies for the follow-up period of six months, probably due to immune suppression by lymphoma and chemotherapy., Conclusion: We report here an unusual case of long-term HEV infection in a patient with T-cell lymphoma. Persistent infection with HEV was probably due to the absence of anti-HEV antibodies, which was caused by lymphoma and chemotherapy., Copyright (C) 2007 Blackwell Publishing Ltd.}, keywords = {Hepatitis E virus, persistent infection, transfusion-transmitted hepatitis E}, isbn = {1386-6346}, author = {Tamura, Akinori and Shimizu, Yohko and Tanaka, Torahiko and Kuroda, Kazumichi and Arakawa, Yasuyuki and Takahashi, Kazuaki and Mishiro, Shunji and Shimizu, Kazufumi and Moriyama, Mitsuhiko} }