Full story:We rely on trillions of bacteria, fungi, archaea and viruses in our mouth, on our skin and in our gut to get through the day and to stay healthy. Scientists had no way to study most of these microbes, which do not seem to want to grow in laboratory cultures. Rapidly improving, low-cost genetic-sequencing technologies are finally making it possible, however. By working with our microbes instead of against them, scientists are coming up with intriguing approaches to tackling persistent diseases and improving our overall health.
http://www.scientificamerican.com/article.cfm?id=genetic-cures-for-the-gut