That was one study. There have been a total of 2 placebo-controlled trials into fecal transplants for C.Diff AFAIK. One showed some benefit over placebo, and the other showed no difference. It looks like that link you posted has just cherry-picked the good result.<p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10679067" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10679067</a>