The secret of how the cold sore virus manages to persist for a lifetime in the human body may have been cracked by US scientists. The herpes simplex virus 1 (HSV-1) can lie dormant in facial nerves, emerging periodically to cause sores. A Duke University Medical Center team may have uncovered how it can reactivate itself from a dormant state. The finding, published in the journal Nature, could eventually lead to new treatments. It's quite likely that over the next few years we will find a lot of viruses, such as HIV, have these small RNAs during latency Dr Stacey Efstathiou Cambridge University When fighting a virus, the immune system relies heavily on the protein chemicals produced by the virus which it uses to help mark it for destruction. Herpes viruses manage to evade the immune system by shutting down production of these...
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