Metagenomics is the science that studies all the DNA present in the microbiome of a sample. The microbiome is the set of microorganisms in a given environment. These microorganisms can be bacteria, archaea, fungi and viruses; forming all of them microbial communities.
The use of metagenomics allows to characterize how different products and diseases affect the microbiome. That is why it is a technique that can be used in diverse areas as Scientific Research, Health, Agriculture and Animal Nutrition, Consumer Goods Industry and the Environment Industry.