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J Infect Dis. 1998 Dec;178(6):1783-6.

Human herpesvirus 6 reactivation is associated with cytomegalovirus infection and syndromes in kidney transplant recipients at risk for primary cytomegalovirus infection.

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Departments of Medicine and Pathology, New England Medical Center and Tuffs University School of Medicine, Boston, MA 02111, USA.


A potential association between human herpesvirus 6 (HHV-6) and cytomegalovirus (CMV) following kidney transplantation was explored by retrospectively testing serial serum specimens for HHV-6 IgG and IgM antibody. HHV-6 reactivation occurred in 35 (66%) of 53 transplant recipients. Fungal or parasitic opportunistic infections, graft rejection or loss, and mortality were not associated with HHV-6 reactivation. HHV-6 reactivation was associated with primary CMV infection (P=.001) and CMV syndrome (P=.003) and with trends for CMV-related hepatitis (P=.095), CMV-related neutropenia (P=.104), and serious CMV disease (P=.085). After controlling for CMV immune globulin (CMVIG) prophylaxis, the association between HHV-6 reactivation and primary CMV infection and syndrome remained significant (P=.002 and 0.006, respectively). The reduction in CMV syndrome among those receiving CMVIG prophylaxis remained significant (P=.007) after controlling for HHV-6 reactivation. HHV-6 reactivation in kidney transplant recipients at risk for primary CMV infection is associated with CMV infection and CMV-related disease, and these effects are independent of CMVIG prophylaxis.

[Indexed for MEDLINE]

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