UAlberta researchers wind up a 40 year old debate on betaretrovirus infection in humans

Research from the University of Alberta is shedding new light on primary biliary cirrhosis, a rare liver disease that affects up to one in 500 middle aged women. In a study published in the journal Alimentary Pharmacology and Therapeutics, Andrew Mason, a professor of medicine in the Department of Medical Microbiology and Immunology, proves that patients with the disease are infected with human betaretrovirus — a virus resembling a mouse mammary tumor virus. … – Source      

UAlberta researchers wind up a 40 year old debate on betaretrovirus infection in humans