How one scientist’s gut microbes changed over a year
Daily sampling allowed Lawrence David to track fluctuations in his microbiome
![graph of microbe abundance](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/09/100116_scivis_feat_free.jpg?fit=860%2C460&ssl=1)
MICROBIAL ROLLER COASTER Computational biologist Lawrence David tracked changes in the friendly bacteria in his mouth and intestines by analyzing daily saliva and fecal samples. The data (close-up above; see full graphs in story) show the ebbs and flows of his microbiome over the course of a year.
All: L.A. David et al/Genome Biology 2014