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Nephrol Dial Transplant. 2011 Jul;26(7):2391-3. doi: 10.1093/ndt/gfr259. Epub 2011 May 12.

Chromosomally integrated human herpesvirus-6 in kidney transplant recipients.

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  • 1Division of Infectious Diseases, Mayo Clinic, Rochester, MN, USA.

Abstract

BACKGROUND:

During primary infection, human herpesvirus-6 (HHV-6) may become integrated into the chromosome. This entity, termed chromosomally integrated HHV-6 (CIHHV-6), is often mistaken as active infection and treated unnecessarily. The prevalence of CIHHV-6 in kidney transplant recipients is not known.

METHODS:

We performed quantitative HHV-6 polymerase chain reaction assay on whole blood samples collected from 47 kidney recipients. CIHHV-6 was defined as HHV-6 DNA levels >1 × 10(6) genomes/mL.

RESULTS:

One of 47 kidney recipients was found to have CIHHV-6. The prevalence of CIHHV-6 was calculated at 2.1% (95% confidence interval, <0.01-12.1%). Despite an increase in HHV-6 DNA level after transplant, the patient did not develop clinical HHV-6 disease.

CONCLUSIONS:

CIHHV-6 may be observed in kidney transplant recipients. Clinicians should be aware of this entity so as not to provide unnecessary treatment to asymptomatic patients with CIHHV-6.

[PubMed - indexed for MEDLINE]
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