Century-old puzzle of Theiler's hepatitis solved 

For almost 100 years, veterinarians have puzzled over the cause of Theiler’s disease, a mysterious type of equine hepatitis that is linked to blood products and causes liver failure in up to 90% of afflicted animals. A team of scientists has now discovered that the disease is caused by a virus – TDAV. TDAV belongs to the family Flaviviridae, which includes the viruses behind yellow fever, dengue fever and hepatitis C. It is most closely associated with a genus of newly discovered viruses called Pegivirus, and is the first of these viruses to be convincingly linked to disease.
Nature News: http://goo.gl/qI9uI
PNAS (Source): http://goo.gl/xZmpo

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