Contact: Morgan Kelly
Caption: Princeton University research suggests that a common strain of herpes virus causes cold sores with only one or two viral particles, resulting in a bottleneck in which the infection is more vulnerable to medical treatment. Viral particles (red dots) move along the narrow interior of a nerve cell, which looks like a black line near the top of the screen. A single viral particle exits the nerve cell and moves down toward a cell, enters it and begins replicating to create millions of copies of the viral particle that turn the entire cell red.
Credit: Video courtesy of Matthew Taylor
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Related news release: Princeton researchers identify unexpected bottleneck in the spread of herpes simplex virus