just as important.According to the newly created Gut Virome Database (GVD) from Ohio State University (OSU) in Columbus, 97.7% of the viruses in our gut are bacteriophages, meaning that they use bacteria as hosts in which to replicate themselves.Early in the 20th century, scientists began to investigate the potential of bacteriophages to combat bacterial infections, but the discovery of antibiotics largely superseded their work.Now, with the growing threat of antibiotic resistance, there has been a resurgence of interest in bacteriophage therapy.Scientists have discovered a great deal about the “bacteriome” — the community of bacteria that make their home in the gut — but characterizing the virome has proved more challenging.