From blank round to a potently active substance?

Scientists at the Bonn University Hospital have now deciphered how the molecule can actually stimulate the immune system to combat viruses.

http://www.sciencedaily.com/releases/2013/04/130419121012.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily%2Ftop_news+%28ScienceDaily%3A+Top+News%29