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Researchers advance fight against biggest hidden virus
Date:3/14/2013

A virus that most people have probably never heard of, yet most of us carry, is the number 1 infectious cause of congenital birth defects. One in 750 children are born with, or develop, permanent disabilities such as hearing loss or brain damage as a result of CMV (cytomegalovirus) infection in the womb. Major research efforts are underway to combat this invidious disease.

Researchers from Cardiff University and the La Jolla Institute, California, have discovered a previously unknown cellular mechanism that could prove critical in creating a CMV vaccine.

"CMV is recognised as a major pathogen by Clinicians, yet there is little public awareness of the virus." says Professor Gavin Wilkinson from the Cardiff University School of Medicine. "More children have disabilities from this disease than other well-known congenital problems, such as Down's syndrome or fetal alcohol syndrome."

"We have identified a novel trick that this virus uses to hide from immune detection," says La Jolla Institute scientist Chris Benedict, Ph.D., a CMV expert. "By uncovering this mechanism, we've provided an important piece of the CMV puzzle that could enable vaccine counter strategies that flush out and eliminate virus-infected cells." The finding was published online today in the journal Cell, Host & Microbe.

CMV's stealthy nature keeps it under wraps. In common with other member of the herpes family of viruses that cause cold sores, chicken pox and other maladies - once contracted, CMV never goes away. Most people are unaware they have contracted the virus, nor generally do they exhibit any visible symptoms during lifelong carriage. However, research is now revealing how hard that the immune system has to fight to keep CMV at bay.

"In addition to causing terrible birth defects and severe disease in patients with autoimmune disease, CMV induces changes in the immune response of anyone carrying the virus," according to Profess
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Contact: Tomas Llewelyn Barrett
BarrettTL1@cardiff.ac.uk
44-292-087-5596
Cardiff University
Source:Eurekalert

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