I don&#x27;t know why they left it out, the work on removing retroviruses from the pig&#x27;s genome is fascinating.<p><a href="http:&#x2F;&#x2F;wyss.harvard.edu&#x2F;viewpressrelease&#x2F;222&#x2F;removing-62-barriers-to-pigtohuman-organ-transplant-in-one-fell-swoop" rel="nofollow">http:&#x2F;&#x2F;wyss.harvard.edu&#x2F;viewpressrelease&#x2F;222&#x2F;removing-62-bar...</a>