Pitt biologists find 'surprising' number of unknown viruses in sewage
Though viruses are the most abundant life form on Earth, our knowledge of the viral universe is limited to a tiny fraction of the viruses that likely exist. In a paper published this week in the online journal mBio, researchers from the University of Pittsburgh, Washington University in St. Louis, and the University of Barcelona found that raw sewage is home to thousands of novel, undiscovered viruses, some of which could relate to human health.
There are roughly 1.8 million species of organisms on our planet, and each one is host to untold numbers of unique viruses, ...




