Why UNC researchers think they've found a weakness in coronavirus Posted Nov 28, 2020 Researchers at UNC say a mutation of the virus that causes Covid-19 is making the disease spread faster, but they believe that same mutation could prove to be the weak point that will make vaccine efforts more fruitful. However promising, the researchers say it remains to be seen if the same results are true in human studies and that more research is needed. (Triangle Business Journal)