Almost 2,000 previously unknown bacteria discovered in the human gut

Different estimates in bacterial species diversity range from 1,000 to 40,000, many of which are still yet to be identified. These undiscovered species may not survive well outside of the gut, or may be unique to geographical populations. This latest study set out to characterize undiscovered bacteria using new metagenomic analysis – a method that tracks potential unidentified genomic traces in human microbiome samples.

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