A whole universe of mysterious viruses remains hidden in our world, according to a new study that finds evidence of an immense and previously unknown variety of viruses living in raw sewage.
Only about 3,000 viruses are recognized, but so-called metagenomic studies — in which researchers sequence the genetic material contained in an environmental sample, like soil or sewage — have indicated this is only a small fraction of the viruses that share our planet, according to the researchers writing in an article published Oct. 4 in the journal mBio.
More at:
http://www.livescience.com/16382-viruses-raw-sewage.html
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