Abstract:
BACKGROUND:TT virus (TTV), a novel DNA virus, was originally thought to be transmitted by transfusion. However, nonparenteral transmission is recently suspected to be a major mode of transmission. To investigate the possibility of reinfection with TTV in multiply transfused patients and to evaluate the significance of transfusion transmission of TTV in patients with hemophilia, serial changes in TTV genotype were investigated in three groups. STUDY DESIGN AND METHODS:Serial changes in TTV genotype were investigated in 16 multiply transfused patients with hemophilia, 16 age-matched patients with chronic hepatitis C, and 16 age-matched healthy subjects. RESULTS:Mixed infection with multiple TTV genotypes was common in all groups. However, changes in TTV genotype were frequent in patients with hemophilia (15/16; 93.8%) but rare in patients with chronic hepatitis C and in healthy subjects (each group: 1/16; 6.3%). CONCLUSION:Changes in TTV genotype were frequently observed in multiply transfused patients with hemophilia but not in patients with chronic hepatitis or in healthy subjects without risk of transfusion transmission. This difference may suggest that exposure to TTV or even reinfection occurs frequently in patients with hemophilia, which could be evidence of transfusion transmission of TTV in this population.
journal_name
Transfusionjournal_title
Transfusionauthors
Toyoda H,Fukuda Y,Nakano I,Katano Y,Yokozaki S,Hayashi K,Ito Y,Suzuki K,Nakano H,Saito H,Takamatsu Jdoi
10.1046/j.1537-2995.2001.41091130.xsubject
Has Abstractpub_date
2001-09-01 00:00:00pages
1130-5issue
9eissn
0041-1132issn
1537-2995journal_volume
41pub_type
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