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HHV-6 increases risk of an “idiopathic” pneumonia syndrome after HCT as does murine roseolovirus in a BMT mouse model. Early HHV-6 was also found to increase non-relapse mortality.

In All, Animal Models, Lung Disease, Transplant Complications by Kristin Loomis

Investigators from University of Michigan have demonstrated that murine roseolovirus is a useful homolog for the study of HHV-6 reactivation in lung disease. In a large retrospective study of HCT patients, they also found early HHV-6 reactivation to increase the risk of both idiopathic pneumonia syndrome and non-relapse mortality.

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New mouse model for HHV-6 & 7

In All, Animal Models by Kristin Loomis

Investigators at Washington University have sequenced a murine herpesvirus and determined that it is closely related to HHV-6 & 7. Named Murine Rosesolovirus (MRV), the virus causes severe depletion of CD4+ T cells and thymic necrosis in young mice. The authors believe that MRV will be a useful mouse model to study the impact of HHV-6 & 7 in humans.

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HHV-7 homolog found in the peripheral nerve ganglia of macaques

In All, Animal Models, CNS Disease by Kristin Loomis

Virologists led by Serge Barcy, PhD at the Seattle Children’s Research Institute and University of Washington have identified a homolog for HHV-7 in pigtail macaques They were surprised to learn that it could be detected in the peripheral nerve ganglia, and hope to use their new animal model to explore how HHV-7 might play a role in demyelinating diseases.