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The term '''microbiome''' describes the community of microorganisms which are living together in a habitat. In the context of personal science, the '''human microbiome''' is of interest, which can describe the communities of bacteria that are found in habits such as the gut, the mouth or the skin. Beyond a pure academic interest, the human microbiome is also linked to health and well-being, e.g. the gut microbiome has been linked to use of probiotics and prebiotics<ref>https://old.reddit.com/r/Prebiotics/top/</ref>.
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All the little organisms that live on in and around you! See Probiotics and Prebiotics<ref>https://old.reddit.com/r/Prebiotics/top/</ref>.
  
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==Microbiome Testing==
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===Microbiome Testing===
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The rapidly plummeting costs for gene sequencing have made microbiome tests now cheap enough for regular self-testing. Broadly speaking, there are two major technologies commonly used in direct-to-consumer tests:  
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Rapidly plummeting costs for gene sequencing have made microbiome tests cheap enough for regular self-testing. Broadly speaking, there are two major technologies commonly used in direct-to-consumer tests:  
  
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# '''16S testing''', so-called because it involves sequencing the 16S rRNA gene that is common to all bacteria and can be used to identify them to some level of accuracy. As it sequences only a portion of the microbial genome, it is much cheaper and prices can be as low as US$20. This comes with a tradeoff in precision. In particular, 16S techniques are generally accurate only to the genus level of bacteria.
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(1) "16S", so-called because it involves sequencing the 16S mRNA gene common to all bacteria. Sequencing only a portion of the microbial genome is much cheaper -- often as low as US$20 --  but comes with a tradeoff in precision. In particular, 16S techniques are generally accurate only at the genus or higher level.
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# '''metagenome genome sequencing''', which sequences all microbial genes and is much more accurate, able to distinguish among different bacterial strains. As it requires more data, this technology is typically more expensive, with prices generally start at US$200.
 
  
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There are a number of microbiome testing companies that offer Direct-To-Consumer testing, these include:
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(2) "whole genome sequencing" or WGS, sequences all microbial genes and is much more accurate, able to distinguish among different bacterial strains. Prices generally start at US$200.
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Dozens of microbiome testing companies are available including
  
 
* Viome
 
* Viome
 
* Ombre https://www.ombrelab.com/ (formerly known as Thryve)
 
* Ombre https://www.ombrelab.com/ (formerly known as Thryve)
  
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== References ==
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<references />
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