I don't know why they left it out, the work on removing retroviruses from the pig's genome is fascinating. http://wyss.harvard.edu/viewpressrelease/222/removin

I don't know why they left it out, the work on removing retroviruses from the pig's genome is fascinating. http://wyss.harvard.edu/viewpressrelease/222/removing-62-barriers-to-pigtohuman-organ-transplant-in-one-fell-swoop http://wyss.harvard.edu/viewpressrelease/222/removing-62-bar...